The Keychron BM27 is a 55-degree vertical wireless mouse with Bluetooth, 2.4 GHz, and wired connections. Its design may suit people who prefer a more upright grip, but comfort and cursor direction depend on hand fit and how naturally you can guide it. The available independent review calls it a satisfactory work mouse; the evidence does not establish a medical benefit or universal comfort.
What the Keychron BM27 offers
Keychron’s US listing identifies the BM27-A61 as a wireless ergonomic mouse. It combines a vertical shape with a PAW3212 sensor, silent micro switches, and support for everyday work and productivity. The manufacturer describes the shape as a 55-degree vertical design.
As an Amazon Associate I earn from qualifying purchases.
| Specification | Keychron’s listing |
|---|---|
| Weight | 99 g |
| Sensor | PAW3212; up to 2,400 DPI and up to 30 IPS |
| Connections | 2.4 GHz wireless, Bluetooth, or wired |
| Battery | 500 mAh; manufacturer claims up to 100 hours in Bluetooth mode and up to 76 hours in 2.4 GHz mode |
| Configuration | Keychron Launcher for button remapping and macros |
| In the box | Mouse, Type-C cable, Type-A receiver, and user manual |
These are specifications and battery-life estimates published by Keychron, not independent test results. The available RTINGS review excerpt does not provide measured runtime, sensor performance, or latency. Keychron’s BM27 product listing
The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Will the vertical shape feel comfortable?
A vertical mouse changes how you hold and move the device compared with a conventional flat mouse. Keychron says the BM27’s 55-degree angle is designed to encourage a more upright hand position. That describes the intended posture; it does not prove that the mouse will feel comfortable to every user or prevent or treat wrist pain.
#1 Best Overall
- Vertical Ergonomic Wireless Mouse: Keychron BM27 is a wireless computer mouse featuring a 55° vertical angle that keeps your hand in a natural handshake position, reducing wrist strain during long work sessions. It supports tri-mode connection with 2.4 GHz wireless, Bluetooth, and USB wired, and works across Windows, macOS, and Linux.
- Triple-Mode Connectivity: Connect the BM27 via 2.4 GHz wireless, Bluetooth 5.2, or USB wired mode for low-latency response across your computer, laptop, and tablet. Switch between devices freely and keep your workflow moving without extra setup.
- Reliable Performance Sensor: Equipped with the PAW3212 sensor, the BM27 offers up to 2,400 DPI and 30 IPS for smooth, stable tracking in work and daily use. All buttons feature silent micro switches, delivering quiet clicks with razor-sharp responsiveness — a quiet wireless mouse for focused work.
- Long Battery Life: A built-in 500 mAh rechargeable battery powers the BM27 for up to 100 hours in Bluetooth mode and up to 76 hours in 2.4 GHz mode. Spend more time working and less time worrying about charging.
- Customize Your Controls: Personalize the BM27 in your browser with the Keychron Launcher web app — no software installation needed. Remap buttons, create macros, fine-tune DPI, polling rate, and LOD, or let AI configure settings for you, with 5 on-board memory profiles ready for different apps and computers.
Fit is the central uncertainty. Keychron displays four customer reviews with sharply different reports: one owner praised comfort, quiet clicks, connection, and battery lasting through two work weeks, while others described an uncomfortable angle for moving the cursor naturally, disappointing glide, or a poor fit for larger hands. A reviewer with smaller hands thought the mouse might suit smaller hands better. These are individual anecdotes, not a representative comfort test or a measure of how often problems occur.
What independent testing says—and does not say
RTINGS’ review, dated September 25, 2026 and labeled Methodology v1.5.2, describes the BM27 as a “satisfactory work mouse.” It says the vertical shape may be more comfortable for some users because it reduces forearm pronation and may help limit strain. The wording is conditional, not a guarantee, and the review excerpt available here does not establish a clinical outcome or provide the measurements needed to assess battery runtime, sensor performance, or latency independently. RTINGS’ Keychron BM27 review
Rank #2
- Lift yourself up: When the desk life gets you down, lift yourself up with Logitech Lift Vertical Ergonomic Mouse - a great fit for small to medium right hands
- Raise your hand into comfort: Rest on Lift upright mouse throughout the day, with a softly textured grip and snug thumb rest for level-above coziness
- 57 degrees of sooooothe: Lift’s vertical shape helps wrists feel like “ahhh” at work, and promotes a more natural posture in the forearm, for day-long comfort and productivity
- Relax into focus: Settle into work with a wireless computer mouse featuring easy-to-reach customizable buttons, whisper-quiet clicks, and a SmartWheel for smooth, seamless scrolling
- Ergo-certified: Lift wireless vertical mouse has been designed, developed, tested, and approved according to criteria set out by leading ergonomists
Connections and setup
The BM27 can connect by 2.4 GHz wireless, Bluetooth, or cable. Keychron’s listed contents include a Type-A receiver and Type-C cable, so the box covers the receiver-based and wired options; Bluetooth avoids using the receiver. Keychron does not state in the cited listing how many Bluetooth devices can be paired at once.
Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchWindows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallFor button remapping and macros, Keychron points to its browser-based Launcher. The company recommends a current version of Chrome, Opera, or Edge and instructs users to connect the mouse by cable or 2.4 GHz mode for configuration. Keychron’s setup and product details
Rank #3
- Wireless Mouse - Weighing just 0.146 lb (66g) and equipped with a PAW 3950 sensor, the Keychron M7 8K delivers top-tier performance in an ultra-lightweight build. Perfect for work, gaming, or travel with dual wireless 2.4 GHz and Bluetooth connectivity. *Processor requirement on 8K polling rate: Intel i7 9th Gen, AMD Ryzen 7 2nd Gen or above
- Ergonomic Comfort for All-Day Use - The ergonomic design of M7, featuring a smooth curve on the top and a thumb rest on the side, conforms more closely to the contour of your palm, ensuring a comfortable grip over extended periods.
- Flexible Connection Options - Connect your way with 2.4 GHz wireless, Bluetooth, or USB Type-C wired mode. Whether you're minimizing latency or maximizing convenience, the M7 adapts to every setup.
- 8kHz Polling Rate - It means a more responsive cursor movements captured with faster trigger response on 2.4G and wired modes, guarantees an unparalleled performance with up to 40 hrs 2.4G mode working time (Up to 120 hrs at1kHz polling rate).
- Precision at Every Level - Powered by the PixArt PAW 3950 sensor, the M7 delivers ultra-responsive tracking on virtually any surface—even glass (1kHz mode). Packed with tech and adjustable through online web app with up to 30,000 DPI, 750 IPS, and an 8000 Hz polling rate.
Who should consider the BM27?
- Consider it if you specifically want a vertical mouse, value the choice of Bluetooth, receiver, and wired connection, and are willing to judge comfort by your own hand fit.
- Be cautious if you have larger hands or are sensitive to mouse angle, cursor direction, or glide; the owner reports raise those as possible fit issues, but cannot predict your experience.
- Do not buy it as a medical fix. Neither Keychron’s listing nor the cited independent review establishes that the BM27 prevents or treats wrist pain.
The RTINGS page frames its coverage alongside the Anker Wireless Vertical Mouse, but the available evidence here is not enough to compare the two models’ fit, cursor feel, glide, connectivity, or value fairly.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Price and availability
Keychron’s US page listed the Space Gray / PAW3212 (1K polling rate) / All Silent Micro Switch configuration at $34.99 and marked that selected configuration backordered when the page was accessed in 2026. Price and stock can change, and that US listing does not establish availability in other markets. Check the product page before buying. Keychron US product page
Rank #4
- NATURAL HANDSHAKE POSITION - MX Vertical’s natural handshake position reduces muscular activity by 10 percent compared to a standard mouse – without any loss in overall performance
- 57° VERTICAL ANGLE FOR IMPROVED WRIST POSTURE - MX Vertical’s unique 57° vertical angle reduces the pressure on your wrist, while your thumb is positioned comfortably on the thumb rest
- USER TESTED. ERGONOMIST-APPROVED. MX Vertical has been designed and tested with criteria set out by leading ergonomists – improve posture, lower muscle strain, and reduce wrist pressure
- ADVANCED OPTICAL TRACKING WITH CURSOR SPEED SWITCH- The 4000 DPI high-precision sensor results in 4x less hand movement (1) and reduces fatigue. The cursor speed switch instantly adjusts DPI speed and accuracy with the touch of a button
- (1) As compared with a traditional mouse with 1000 DPI sensor
Keychron also has a regional India listing, but its local availability and pricing should not be assumed to apply elsewhere. Keychron India listing
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Quick Recap
Best Value
- Wireless Mouse: Keychron M7 packs the best features in an ultra-lightweight body at 63g. It supports low latency wireless 2.4 GHz and Bluetooth 5.1 connection, ideal for any scenario, whether at work, gaming, or on the go, and offers ultimate performance to maximize productivity. And one charge can last for 70 hours of continuous use.
- Strongest Mouse Sensor: M7 has the strongest, most competitive grade mouse sensor chip PixArt 3395, with up to 26,000 DPI, up to 650 IPS, and incomparable gripping precision. Precise sensors and 1000 Hz polling rate give you the best performance for both office, gaming or even on the go.
- Ergonomic Design: The M7 features a smooth curve on the top and a thumb rest on the side, conforms more closely to the contour of your palm, ensuring a comfortable grip over extended periods. And it offers just the right amount of lightness, flexibility, and effortlessness to hold in your hand for extended use.
- Software for macOS/Windows: Keychron Engine software allows you to do more personalization, modify keys, set shortcuts, and even your dedicated macros; you can also do professional settings for LOD, polling rate, DPI, etc. It has an extra macro button on the left side, and all buttons are programmable in the dedicated software.
- 2.4G, Bluetooth or Wired: Engineered with cutting-edge 2.4 GHz wireless connectivity with a 1000 Hz polling rate, the M7 gives you extremely low latency and quick response for gaming and work. It also offers a stable 5.1 Bluetooth connection compatible with Mac, PC and laptop.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
