The Keychron BM27 is a wireless vertical mouse with useful connection options and quiet-click variants, but its comfort depends on whether its angle and shape suit your hand. Keychron lists a 55-degree design and a 99 g weight; owner feedback is mixed on cursor direction, glide, and fit. Consider it if you want to try a vertical grip for everyday work, not as a proven remedy for wrist pain.
What the Keychron BM27 is—and what it promises
The BM27 is Keychron’s vertical ergonomic wireless mouse, listed on the company’s US site as SKU BM27-A61. Its upright shape is intended to reduce forearm pronation compared with a conventional flat mouse. That describes the design goal, not a guaranteed comfort or medical outcome.
Keychron specifies a 55-degree vertical angle and a 99 g body. It lists a PAW3212 sensor with up to 2,400 DPI and a maximum 30 IPS, plus a 500 mAh battery. Those are manufacturer specifications, not independent measurements. Keychron BM27 product page
| Specification | Keychron’s listing |
|---|---|
| Shape and weight | 55-degree vertical design; 99 g |
| Sensor | PAW3212; up to 2,400 DPI and up to 30 IPS |
| Connections | 2.4 GHz wireless, Bluetooth, and wired |
| Battery | 500 mAh; claimed up to 100 hours in Bluetooth mode or up to 76 hours in 2.4 GHz mode |
| Configuration | Keychron Launcher for button remapping and macros |
Battery figures are Keychron claims; the available independent review excerpt does not provide a measured runtime. The listed box contents are the mouse, a Type-C cable, a Type-A receiver, and a user manual. Keychron BM27 product page
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#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.
Will the BM27 feel comfortable?
There is no single answer: the shape may suit someone who prefers a more upright grip, but the mouse’s angle and size have to work for that person’s hand and movement. Keychron’s product language promotes wrist comfort and pain-free work; neither that marketing nor the available independent-review excerpt establishes that the BM27 prevents or treats pain.
Keychron’s page displays four owner reviews with contrasting experiences. One owner praises comfort, quiet clicks, connection, and battery life lasting through two work weeks. Other reviewers describe needing to hold the mouse at an uncomfortable angle to move the cursor naturally, poor glide on their surface, or a fit they disliked with larger hands. A reviewer who describes having smaller hands suggests it may suit smaller hands better. These individual reports can flag questions to consider, but they are not a representative comfort test or evidence of how common any issue is. Keychron BM27 product page
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
In practical terms, pay attention to whether you can move the cursor naturally while holding the mouse in a relaxed position, whether its size fits your hand, and whether it glides well on your own surface. The owner reports do not establish that a particular pad or adjustment fixes glide or cursor-angle complaints.
How it performs as a work mouse
RTINGS published its BM27 review on September 25, 2026, using Methodology v1.5.2. Its verdict is that “The Keychron BM27 is a satisfactory work mouse.” The review excerpt says the vertical shape may be more comfortable for some users because it reduces forearm pronation and may help limit strain. The qualification matters: the excerpt does not establish a universal comfort benefit, a medical effect, or a battery, sensor, or latency measurement. RTINGS Keychron BM27 review
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1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problemsRank #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.
The evidence supports treating the BM27 as a productivity-oriented mouse with a distinctive grip, rather than assuming it will suit every desk setup or hand. There is not enough evidence here to score it against the Anker Wireless Vertical Mouse or name a winner; a meaningful comparison would require comparable information about fit, cursor movement, glide, connectivity, configuration, weight, and local price.
Connections and configuration
The BM27 supports 2.4 GHz wireless through its included Type-A receiver, Bluetooth, and wired use over its Type-C cable. That gives it options for a desktop, laptop, or setup where wireless use is inconvenient, though the available evidence does not establish performance differences between modes.
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 says its browser-based Launcher can remap buttons and create macros. The company recommends a current Chrome, Opera, or Edge browser and says to connect the mouse in wired or 2.4 GHz mode to configure it. The listed package includes the cable and receiver, so both supported configuration connection methods have corresponding accessories in the box. Keychron BM27 product page
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Should you buy the Keychron BM27?
- Consider it if you want to try a vertical mouse for everyday work, value Bluetooth plus 2.4 GHz and wired options, or prefer silent-click switches.
- Be cautious if you have larger hands, need a particular cursor direction or glide feel, or cannot test whether the 55-degree grip feels natural to you.
- Do not buy it for a medical promise. The evidence here does not show that the BM27 prevents or treats wrist pain.
On Keychron’s US product page, the listed price is $34.99, and the selected Space Gray / PAW3212 (1K polling rate) / All Silent Micro Switch configuration is marked backordered. Price and stock are a US-page snapshot, not a durable or global quote; check the listing for current status. Keychron BM27 product page
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.
