


Best Ergonomic Keyboards in 2026



Score | Brand | Model | Price | Bearings | Form Factor | Ball (mm) | Scroll | Polling (Hz) | DPI | Connection | Buttons | Software All | Sensor |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
81.7 | $130 5 | Dynamic 10 | MSTE-style (right-handed) 9 | 52mm 9 | Wheel with tilt 8 | 1000 Hz 10 | 1500 (adj) 7 | Tri-mode: Bluetooth 5.3, 2.4GHz wireless, Wired USB-C 10 | 10 10 | Yes 8 | IR LED optical (optical) 7 | ||
79.2 | $75 7 | Dynamic 10 | Ambidextrous 10 | 45mm 7 | Finger drag (configurable) 9 | 1000 Hz 10 | 12000 (adj) 9 | Wired USB 6 | 6 10 | Yes 8 | PixArt PMW3360 (optical) 7 | ||
77.2 | $147 5 | Dynamic 10 | MSTE-style (right-handed) 9 | 45mm 7 | Finger + scroll wheel 9 | 1000 Hz 10 | 12000 (adj) 9 | Wired USB 6 | 5 9 | Yes 8 | PixArt PMW3360 (optical) 7 | ||
74.4 | $43 10 | Dynamic 10 | Ambidextrous mini 10 | 38mm 5 | Button-based / firmware scroll 9 | 1000 Hz 10 | 4000 (adj) 9 | Wired USB-C 6 | 1 3 | Yes 8 | PixArt PAW-3222 (optical) 7 | ||
70.2 | $100 7 | Static 4 | Ambidextrous 10 | 55mm 10 | Virtual (twist the ball) 10 | 125 Hz 3 | 1600 7 | Wired USB-C, BT, 2.4 GHz dongle 10 | 4 9 | Yes 8 | Optical (trackball) (optical) 7 | ||
70.1 | $120 5 | Static 4 | Ambidextrous fingertip 10 | 48mm 7 | Capacitive touch pad 10 | 1000 Hz 10 | 3200 (adj) 9 | Wired USB-C 6 | 5 9 | Yes 8 | PixArt PMW3360 (optical) 7 | ||
68.4 | $60 7 | Static 4 | Ambidextrous 10 | 55mm 10 | Scroll ring + wheel 9 | 125 Hz 3 | 1600 (adj) 7 | Wireless (BT & 2.4 GHz dongle) 7 | 7 10 | Yes 8 | Optical (optical) 7 | ||
66.3 | $170 3 | Dynamic 10 | Thumb (right-handed) 4 | 38mm 5 | Scroll wheel (index finger) 8 | 1000 Hz 10 | 12000 (adj) 9 | Wired USB 6 | 5 9 | Yes 8 | PixArt PMW3360 (optical) 7 | ||
64.5 | $80 7 | Static 4 | Ambidextrous 10 | 55mm 10 | Virtual (twist the ball) 10 | 125 Hz 3 | 1600 7 | Wired USB 6 | 4 9 | No 5 | Optical (trackball) (optical) 7 | ||
64.1 | $42 10 | Static 4 | MSTE-style (right-handed) 9 | 44mm 7 | Wheel (with tilt) 9 | 125 Hz 3 | 1200 (adj) 7 | Wireless (BT & 2.4 GHz dongle) 7 | 5 9 | Yes 8 | Optical (optical) 7 | ||
63.2 | $90 7 | Static 4 | Ambidextrous 10 | 55mm 10 | Finger scroll ring 9 | 125 Hz 3 | 600 5 | Wired USB 6 | 4 9 | No 5 | Optical (trackball) (optical) 7 | ||
63.0 | $90 7 | Static 4 | MSTE-style (right-handed) 9 | 52mm 9 | Wheel (with tilt) 8 | 125 Hz 3 | 1000 (adj) 7 | Wireless (2.4 GHz dongle) 7 | 8 10 | Yes 8 | Optical (optical) 7 | ||
62.7 | $70 7 | Static 4 | MSTE-style (right-handed) 9 | 44mm 7 | Wheel (with tilt) 8 | 125 Hz 3 | 1500 (adj) 7 | Wired USB, BT, 2.4 GHz dongle 10 | 8 10 | Yes 8 | Optical (optical) 7 | ||
60.2 | $110 5 | Static 4 | Thumb (right-handed) 4 | 38mm 5 | Scroll wheel (index finger) 8 | 1000 Hz 10 | 2400 (adj) 9 | Wired USB-C 6 | 5 9 | Yes 8 | PixArt PMW3360 (optical) 7 | ||
59.4 | $70 7 | Static 4 | Ambidextrous 10 | 40mm 7 | Thumb scroll wheel 3 | 125 Hz 3 | 1500 (adj) 7 | Wireless (2.4 GHz dongle) 7 | 5 9 | Yes 8 | Optical (optical) 7 | ||
56.9 | $160 3 | Static 4 | Ambidextrous 10 | 57mm 10 | Wheel 8 | 125 Hz 3 | 1600 (adj) 7 | Wired USB 6 | 3 3 | No 5 | Laser 7 | ||
55.8 | $35 10 | Static 4 | Ambidextrous mini 10 | 34mm 5 | Wheel 8 | 125 Hz 3 | 750 5 | Wireless (Bluetooth) 7 | 3 3 | No 5 | Optical (optical) 7 | ||
55.5 | $40 10 | Static 4 | Thumb (right-handed) 4 | 36mm 5 | Wheel 8 | 125 Hz 3 | 1600 (adj) 7 | Wireless (BT & 2.4 GHz dongle) 7 | 5 9 | Yes 8 | Optical (optical) 7 | ||
54.7 | $50 10 | Static 4 | Thumb (right-handed) 4 | 34mm 5 | Wheel 8 | 125 Hz 3 | 2000 (adj) 9 | Wireless (BT & USB dongle) 7 | 5 9 | Yes 8 | Optical (optical) 7 | ||
53.3 | $100 7 | Static 4 | Thumb (right-handed, tilting) 4 | 34mm 5 | Wheel 8 | 125 Hz 3 | 2048 (adj) 9 | Wireless (BT & USB dongle) 7 | 6 10 | Yes 8 | Optical (optical) 7 | ||
51.5 | $36 10 | Static 4 | Thumb (right-handed) 4 | 36mm 5 | Wheel 3 | 125 Hz 3 | 1200 (adj) 7 | Wireless (2.4 GHz dongle) 7 | 5 9 | Yes 8 | Optical (optical) 7 | ||
51.0 | $70 7 | 2 | Vertical mouse 3 | 5 | Wheel 8 | 125 Hz 3 | 4000 (adj) 9 | Wireless (BT & USB dongle) 7 | 6 10 | Yes 8 | “Advanced” optical (4000 DPI) (optical) 7 | ||
49.9 | $100 7 | 2 | Standard ergonomic mouse 2 | 5 | Wheel + thumb wheel 8 | 125 Hz 3 | 8000 (adj) 9 | Wireless (BT & USB dongle) 7 | 7 10 | Yes 8 | Darkfield optical (8000 DPI) (optical) 7 | ||
48.9 | $100 7 | 2 | Vertical mouse 3 | 5 | Wheel 8 | 125 Hz 3 | 4000 (adj) 9 | Wireless (BT & USB dongle) 7 | 4 9 | Yes 8 | High precision (optical) 7 | ||
10.0 | $925 3 | Static 4 | Ambidextrous (integrated keywell) 10 | 44mm 7 | Finger (firmware-mapped, no wheel) 9 | 1000 Hz 10 | 1600 (adj) 7 | Wired (via keyboard PCB) 6 | 0 3 | Yes 8 | PixArt PMW3360 (optical) 7 |
Hands-on trackball mouse reviews ranked for ergonomic use, RSI recovery, and daily work. If you only read three things, read these:
Standard mice force your wrist into pronation (palm down) and require constant back-and-forth movement that strains tendons. This repetitive motion causes Repetitive Stress Injury (RSI) and Carpal Tunnel Syndrome (CTS) in the wrist and forearm. The problem worsens at walking desks where the up-and-down motion adds vertical wrist movement to the horizontal.
Trackballs eliminate wrist movement entirely. Your hand stays stationary while your fingers move the ball. This removes the root cause of mouse-induced RSI - repetitive wrist motion.
Not the same as a RollerMouse. A roller bar mouse (often called a RollerMouse) is a separate category - a long roller bar sits centered in front of your keyboard, and you slide and roll it with either hand instead of reaching off to the side. It targets the same RSI by keeping the device on your centerline; trackballs target it by stopping wrist motion. We don't review roller bar mice, but Contour Design is the dominant brand if you want to explore them.
These add ergonomic grips and thumb rests but still require wrist movement to move the mouse. You'll feel some improvement from better hand positioning, but the fundamental issue - moving your wrist repeatedly - remains. Many users report partial relief but not complete RSI resolution.
Vertical mice eliminate wrist pronation by positioning your hand in a "handshake" orientation. This is better than standard mice, but you're still moving your wrist to move the mouse.The motion is the problem, not just the angle.
Users with mild RSI often find vertical mice sufficient. Those with moderate to severe RSI need trackballs.
These replace the sensor with a thumb-operated ball. The familiar form factor makes adaptation easier, but moving your thumb constantly is as bad for thumb joints as moving your wrist is for wrist joints.Prolonged thumb-ball use leads to thumb RSI (De Quervain's tenosynovitis), and thumbs are less precise than fingers.
Thumb-balls are a stepping stone, not the solution. If your RSI is significant, skip directly to finger-ball trackballs.
Finger-ball trackballs use your middle or index finger to move a large ball (typically 55mm). This distributes movement across stronger, more dexterous fingers instead of concentrating it in your thumb. The result: significantly less strain and better precision.
Square or diamond-shaped with the ball in the center. Can be used with either hand by remapping buttons. Best for hover-hand use (hand floating above the trackball rather than resting on it).
Advantages:
Top picks: Ploopy Adept ($75, dynamic bearings, VIA remapping, best wired option), Kensington SlimBlade Pro ($100, tri-mode wireless).
Named after the Microsoft Trackball Explorer, these follow a traditional mouse-like shape designed for palm resting. Usually right-handed.
Top picks: Ploopy Classic 2 ($150, dynamic bearings), Nulea M505 ($42, budget option).
Dynamic (Steel Roller) Bearings:
Static (Ceramic) Bearings:
Scroll wheel (traditional): Familiar, precise scrolling. MSTE-style trackballs place it under the thumb.
Rotate-to-scroll (Kensington SlimBlade): Rotate the entire ball to scroll. Learning curve but becomes natural after a week.
First week: Expect 40-60% accuracy compared to your standard mouse. Lower mouse sensitivity initially. Practice with low-stakes tasks (web browsing) before switching for work.
Second week: Accuracy improves dramatically - you'll hit ~80-90% of your normal precision.
After a month: Most users report equal or better precision than their previous mouse. Wrist pain reduction should be noticeable.
For most people the Elecom Huge Plus is the best value: swappable steel bearings, 1000Hz polling, tri-mode connectivity, and 10 programmable buttons. If RSI is significant, a finger-ball trackball like the Ploopy Adept (dynamic bearings, ambidextrous) is the better long-term answer. The Svalboard is the most ergonomic option but has a steep learning curve.
Look for a finger-ball or ambidextrous trackball with dynamic bearings so the feel stays smooth over months of daily use. The Ploopy Adept and Kensington SlimBlade Pro are strong office picks. Thumb-balls like the Logitech MX Ergo are easier to adapt to but trade wrist strain for thumb strain over a full workday.
Trackballs help wrist pain and carpal tunnel because your hand stays stationary while your fingers move the ball, removing the repetitive wrist motion that causes RSI. For moderate to severe symptoms, skip thumb-balls and go straight to a finger-ball trackball such as the Ploopy Adept. For serious RSI, an ambidextrous design lets you switch hands so your dominant side can heal.
Finger-ball trackballs distribute movement across stronger, more dexterous fingers and a large ball, giving less strain and better precision. Thumb-balls keep a familiar mouse shape and are easier to learn, but constant thumb motion can cause De Quervain's tenosynovitis. Thumb-balls are a stepping stone; finger-balls are the solution for significant RSI.
The Ploopy Nano 2 is the best budget finger-ball pick, keeping dynamic bearings and programmable firmware in a compact body. The Nulea M505 (around $42) is a cheaper MSTE-style option, but its static bearings need weekly cleaning under heavy use.
For general productivity, wireless is fine. For gaming, CAD, or design work, use 2.4GHz wireless or wired and a 1000Hz polling rate; Bluetooth adds latency that hurts precision. Tri-mode trackballs like the Elecom Huge Plus cover all cases.
Below are the full brand and model notes for every trackball on this page.
Major refresh of Elecom's iconic Huge trackball that fixes every shortcoming of the original. Swappable MinebeaMitsumi steel bearings (upgradeable to synthetic ruby) eliminate the notorious bearing problem. 1000Hz polling rate brings gaming-grade precision. Tri-mode connectivity (Bluetooth 5.3, 2.4GHz, wired USB-C) with 3-device simultaneous pairing. 10 programmable buttons, silent click switches, rechargeable battery lasting up to 5 months, and the same beloved 52mm ball with cushioned palm rest.
Swappable MinebeaMitsumi steel ball bearings - can be removed for cleaning or swapped to synthetic ruby units. Includes bearing puller tool. Massive upgrade from the original Huge's notorious static bearings.
Same ergonomic hand-rest design as the original Huge, with low-resilience cushioned palm rest
Same large 52mm ball as the original - excellent for precision and comfort
Scroll wheel with tilt for horizontal scrolling. Tilt clicks are programmable.
1000Hz - 8x improvement over the original Huge's 125Hz. Gaming-grade responsiveness.
3-step adjustable: 500 / 1000 / 1500 DPI
Pair up to 3 devices simultaneously (one per connection type) and switch instantly via slide switch. USB-C for charging and wired mode.
10 programmable buttons including tilt scroll. Customizable via Elecom Mouse Assistant software. On-board memory planned for future firmware update.
Elecom Mouse Assistant - full button remapping, DPI adjustment. On-board memory coming via firmware update.
10.3 oz - lighter than the original Huge (420g) despite rechargeable battery
Large MSTE trackball designed for battle stations. Large ball improves ergonomics and precision with comfortable hand-rest. Notorious for poor bearings requiring replacement (maker task). Thumb scroll wheel contributes to RSI.
Notorious for poor bearings - most users replace them
500 / 1000 DPI
Many programmable buttons
Elecom Mouse Assistant
Portable MSTE trackball, smaller than Huge. More flexible setup, one-size-fits-all. Same bearing issues as Huge requiring replacement. More familiar layout for traditionalists.
Same poor bearings as Huge
Thumb-operated scroll wheel
500 / 1000 / 1500 DPI
Elecom Mouse Assistant
Tiny portable trackball that fits in your pocket. Better ergonomics than laptop trackpad, handy in a pinch. Not perfect ergonomically (thumb scroll) - don't use as daily driver. Only get 2.4GHz version, not Bluetooth (too imprecise).
Thumb ball for portability
Limited buttons due to small size
Ambidextrous trackball with dynamic steel roller bearings, zero stiction, and high polling rate. Perfect for switching hands to prevent RSI. Great for gaming and hover-hand use at standing desks.
Steel roller bearings - zero stiction, replaceable
Square design, can switch hands
High polling rate for gaming
VIA/QMK for full programmability
MSTE-style trackball with dynamic steel ball bearings. Classic 2 fixes the Classic 1's 8mhz scroll-wheel polling issue and adds USB-C. Highly ergonomic with excellent precision for gaming.
Steel ball bearings - smooth, low stiction
Microsoft Trackball Explorer inspired
Fixed scrolling issue from Classic 1
Very high polling for precision
USB-C
VIA/QMK programmable
Compact, budget-friendly trackball with dynamic bearings. Smaller ball size but maintains Ploopy's quality standards with programmable firmware.
Smaller but still dynamic bearings
Configurable firmware, 1000Hz+
Single button plus scroll mode
VIA/QMK programmable
Premium thumb-operated trackball. While thumb balls can contribute to thumb RSI, Ploopy's version offers dynamic bearings and high build quality.
Not actively recommended due to thumb RSI risk, but included as a reference for those who prefer thumb balls. Ploopy's version is the best-in-class option if insisting on a thumb ball.
Steel bearings for smooth thumb operation
Thumb-operated - may cause thumb RSI
VIA/QMK programmable
Premium ambidextrous trackball with virtual scrolling (twist ball). Offers wireless (2.4GHz), Bluetooth, and wired connectivity. Square format ideal for switching hands. End-game trackball for many users.
Fakespot grade A: Trustworthy reviews.
Ceramic bearings - some stiction but better than Expert
Square Kensington-style design, can switch hands
Kensington Works for button mapping
Wired ambidextrous trackball with virtual scrolling (twist ball). Same square format as SlimBlade Pro but wired-only at lower price point.
Fakespot grade A: Trustworthy reviews.
Ceramic bearings
Square Kensington-style design
Older model, limited software support
Very popular ambidextrous trackball with physical scroll ring. One step behind SlimBlade. Angle requires wrist cushion (included) for proper ergonomics.
Static bearings - more stiction than SlimBlade
Square design, needs wrist cushion
Physical scroll ring around ball
~400–600 native (feels higher)
Optional KensingtonWorks download
Includes wrist rest.
Ambidextrous trackball with wireless options, but suffers from thumb button placement (RSI risk) and low-quality squishy buttons. Better options available in this price range.
Thumb scrolling - contributes to RSI
400 / 800 / 1500 DPI
Kensington Works
Ambidextrous gaming-focused trackball with capacitive scroll pad. Fast sensor and sturdy build, but still uses static bearings and a higher fingertip posture than ergonomic wedges.
High-quality ceramic bearings
Flatter gaming posture
GameBall config utility
Premium thumb-operated trackball with ceramic bearings and high polling. Still inherits thumb-ball RSI risks, so we only recommend it when dynamic-bearing options like Ploopy Thumb aren't available.
Ceramic bearings
Budget ambidextrous trackball with wireless options. Adds bells and whistles but reports worse stiction than SlimBlade. Highly recommend saving up for Ploopy Adept instead.
Reports of higher stiction than SlimBlade
400–1600 DPI
Budget MSTE-style trackball. Reports of stiction issues, but a solid option if you're tight on cash and need an MSTE form factor.
Complaints of stiction
400–1200 DPI
Budget thumb-operated trackball. While affordable, thumb balls can contribute to thumb RSI. Consider a finger trackball instead.
Fakespot grade C: Some questionable reviews.
Thumb-operated - can cause thumb RSI
Up to ~1200 DPI
Popular among die-hards. Laser sensor and steel bearings are much higher quality than competitors - precision winner. Bearings don't gather gunk. But only 3 buttons (deal-breaker for programmers) and design not quite as ergonomic.
Steel bearings, minimal maintenance
Not as ergonomic as competitors
Hardware switch for 400 / 800 / 1600 DPI
Only 3 buttons - deal-breaker for many
High precision laser sensor
Budget thumb trackball option. While affordable, thumb balls can contribute to thumb RSI - finger trackballs recommended instead.
Thumb-operated - RSI risk
Up to ~1600 DPI
Budget thumb-operated trackball. More affordable than MX Ergo but still suffers from thumb RSI issues. Finger trackballs provide better long-term ergonomics.
Fakespot grade B: Some promotional reviews.
200–2000 DPI
Logi Options+
Premium thumb-operated trackball from Logitech's MX line. High quality, but thumb operation can contribute to thumb RSI. Finger trackballs recommended instead.
Fakespot grade B: Some promotional reviews.
Thumb-operated - can cause thumb RSI
Thumb scroll wheel
~512–2048 DPI
Logi Options+
Budget vertical mouse that reduces wrist pronation angle. However, still requires hand movement to operate, which contributes to RSI. Trackballs eliminate this motion.
Fakespot grade B: Generally reliable.
Reduces pronation but still requires hand movement
400–4000 DPI
Logi Options+
Premium ergonomic standard mouse. While ergonomic grip reduces wrist pronation, still requires hand movement that contributes to RSI. Trackballs eliminate this motion entirely.
Fakespot grade B: High quality with some promotional reviews.
Ergonomic but still standard mouse - not trackball
Logi Options+
Premium vertical mouse from MX line. Removes wrist pronation entirely, but hand movement still contributes to RSI. Trackballs are the complete solution.
Fakespot grade B: Mostly reliable.
MX quality vertical mouse
Logi Options+
A single-maker hardware shop in Pacifica, CA, USA, building the **Svalboard Lightly** — a modern reimagining of the discontinued Datahand: a fully adjustable keywell split keyboard with low-force magneto-optical keys and an integrated trackball / trackpoint / touchpad pointing option so the hands never leave the keywell. Hardware and firmware are open source (Onshape/STEP CAD files for customers, Vial-QMK firmware on a Raspberry Pi RP2040). Boards are made to order with a ~4–5 week lead time. Founded and run by a multi-decade Datahand user and professional consumer-electronics developer; a spiritual successor to Datahand, not the same company.
Right-to-repair model (in lieu of a fixed warranty). No published warranty matrix or fixed warranty months — warranty_* left empty intentionally. Instead Svalboard commits to repairability: every component is individually swappable, replacement PCBs and parts are stocked, STL/STEP CAD files are provided to customers, and the maker explicitly offers hands-on repair help ("if you break something we'll help you get it fixed"). A paid "Secondary Market Support" product ($100) covers support for second-hand units. This is a deliberate model, not missing coverage.
Made in USA / open source. Designed and built in Pacifica, CA, USA. Hardware CAD on a public Onshape repo; 100% open-source Vial-QMK firmware on an RP2040 (8 MB program memory). Made-to-order, ~4–5 week typical build time.
Catalog. Single-vendor Shopify storefront — the Svalboard Lightly (Single/Dual/No-Pointer tiers, PANDA/RED PANDA pre-builds), pointing-option upgrade kits (trackball/touchpad/trackpoint), replacement parts, and apparel. Not the same brand as Datahand (spiritual successor only — not set as an alias).
The "Svalboard Trackball" is not a standalone mouse — it is the integrated finger-operated trackball pointing option of the **Svalboard Lightly**, a modern Datahand-style ergonomic split keyboard. Ordered with the trackball option, a finger-operated ball sits inside the keywell so the hands never leave home position; there are no separate mouse buttons or scroll wheel — clicks and scroll are mapped to keyboard keys via the live-programmable Vial-QMK firmware (Raspberry Pi RP2040 MCU). The default ball is 44 mm and rides on plain **static** 3.175 mm bearings (not Ploopy-style dynamic rolling bearings). Designed and built in Pacifica, CA, USA as a made-to-order build (~4–5 week lead time). It is sold only as part of a full Svalboard build or as a separate upgrade kit for existing owners.
Tiered by pointing configuration on the Svalboard Lightly product page (svalboard.com/products/lightly): Single Pointer $925, Dual Pointer $1,050 (a pointing module on each half), No Pointer $800 (keyboard only). The table lists $925 — the entry price to get one trackball. Pre-configured PANDA / RED PANDA builds with dual 44 mm trackballs run $1,100–$1,130. No sale or coupon observed; free domestic shipping ($20 off international). Brand-direct only — no Amazon listing, no affiliate program.
Static, confirmed first-party. Svalboard's Trackball-Components / upgrade-kit copy: "source some static bearings (3.175 mm is the current default)". This is a plain static-bearing / ruby-style seat, not a dynamic rolling-bearing trackball — it scores on the static side of the heaviest scoring axis. The 3D-printed holder is published on a public Onshape repo for DIY/repair.
Finger-operated trackball integrated in the keyboard keywell. Modeled as Ambidextrous because the Dual Pointer configuration places a trackball on either or both halves; there is no discrete mouse body.
44 mm is the default and headline value (Svalboard-exclusive Bright Silver, or Red SANWA 44 mm). A 52 mm Pearl resin ball option exists for larger hands (~185 mm+ hand length) but requires a separate 52 mm holder — ball sizes are not freely interchangeable without printing/ordering the matching holder. BYO-ball is supported. The brand explicitly recommends lubing the ball before first use ("face oils are the gold standard"); it significantly affects tracking — a real-world care note, not a defect.
No physical scroll wheel or ring. Scroll (and all clicks) are firmware-mapped to keyboard keys/layers via Vial-QMK. finger is the least-wrong scroll-mode enum for a key/layer-driven scroll with no discrete scroll hardware.
Wired only, via the keyboard PCB. Magnetic USB-C cables are included. No wireless option.
Zero dedicated mouse buttons — every click is mapped to a keyboard key through the open-source firmware, so button count is by-design 0 rather than a limitation.
Fully programmable via Vial-QMK (100% open-source firmware, no re-flashing required). DPI, click/scroll mappings, and layers are all live-configurable.
Listed as PixArt PMW3360 (optical), but this is community / prior-writer sourced — it is not stated on Svalboard's storefront, product JSON, or any first-party copy. Treat as low-medium confidence, not manufacturer-confirmed. polling_rate=1000 Hz and dpi=1600 are Vial-QMK firmware defaults (medium confidence, not published storefront specs); DPI is firmware-adjustable.