Razer Basilisk V4 Pro: Review, Pros & Cons

Summary

The Razer Basilisk V4 Pro is a right-handed ergonomic wireless gaming mouse with a 50,000 DPI sensor, 14 controls and native 8,000 Hz polling, aimed at users who want many buttons and long battery life. Check button placement against your hand size before buying: reviewers disagree on the new thumb layout.

Strengths

Comfortable right-handed ergonomic shape with thumb rest, praised across reviews.
Flawless wireless connection with no drops or interference in testing.
Precision Tactile (48-step) wheel feels excellent for fine scrolling.
Long battery life, sufficient for normal use at lower polling rates.
Onboard profiles and macros work with Synapse closed.
Solid build quality comparable to prior Basilisk models.

Weaknesses

Thumb-button layout is the biggest open question; placement depends on hand size and thumb reach.
AI Prompt Master button is limited and unreliable in testing; remapping is the common recommendation.
Razer Synapse is a heavy desktop app and lighting profiles are not stored onboard.
RGB dropped from 13 zones on the V3 Pro 35K to 7; less visible under a palm grip.
Rubber side grips wear down over time per reviewer experience.

Verified specifications

Sensor	Razer Focus Pro 50K Optical Sensor Gen-3; up to 50,000 DPI; 930 IPS; 90 G acceleration.
Switches	Razer Optical Mouse Switches Gen-4; rated for 100 million clicks; 12% lighter actuation.
Polling	native 8,000 Hz in wired and wireless modes.
Battery	up to 200 h on HyperSpeed Wireless Gen-2 at 1,000 Hz; up to 275 h on Bluetooth 6.2; about 54 h at 8,000 Hz per Tom’s Hardware.
Controls	14 customizable controls (Razer count includes scroll up and down); 12 programmable buttons per Tom’s Hardware.
Scroll wheel	HyperScroll Tilt Wheel Gen-2; 4-way tilt; Tactile Mode (24-step); Precision Tactile Mode (48-step); Free-Spin Mode; Smart-Reel auto-switch.
Lighting	7-zone Razer Chroma RGB underglow; 16.8 million colors per zone.
Connectivity	HyperSpeed Wireless Gen-2, Bluetooth 6.2 (up to 3 paired devices, 5 total connections), wired USB-C.
Form factor	right-handed ergonomic wireless gaming mouse with thumb rest.
Tracking	tracks on glass at least 4 mm thick.
Onboard memory	4 assignable slots plus a hybrid slot for the last-used software profile.
Software	Razer Synapse 4 (desktop) required for programming; macros work without Synapse once saved.
Warranty	up to 2 years when purchased via RazerStore, with 14-day risk-free returns.
Dimensions	5.02 × 2.98 × 1.68 in (127.5 × 75.8 × 42.5 mm).
Weight	100 g (black); white variant weight not specified.
In the box	USB-A dongle, USB-A to USB-C adapter, 6-foot braided USB-C to USB-A cable.

Full research notes and sources

Battery life and polling

Razer claims up to 200 h on HyperSpeed Wireless at 1,000 Hz and up to 275 h on Bluetooth 6.2, but Tom’s Hardware measured about 54 h at the advertised 8,000 Hz. The maximum runtime and maximum polling rate are not simultaneous benefits, so plan on charging more often if you run 8,000 Hz. The 8,000 Hz polling works out of the box in both wired and wireless modes without a separate dongle or dock. Charging uses the included 6-foot braided USB-C cable; the cable is not a flexible HyperFlex cable and is not intended for wired play.

Buttons and hand fit

The V4 Pro carries 14 customizable controls by Razer’s count (scroll up and down included) or 12 programmable buttons by Tom’s Hardware’s count; the two figures count different things. The third side button defaults to Razer’s AI Prompt Master, a ChatGPT-based prompt window that requires Synapse, cannot change the AI engine, and had some preset tasks fail in testing. Hand size and thumb reach matter more than the spec sheet. Manual profile switching moved from the underside button to the M1 edge button, using a control that could otherwise be remapped.

Software and lighting

Razer Synapse 4 is a desktop app, not web-based, and Synapse Web does not currently list the V4 Pro. Macros work without Synapse once saved, but lighting effects are not stored onboard, so colors revert to spectrum cycling when Synapse is closed. Grip coating wear on prior Basilisk models is a durability concern raised by reviewers. Keep firmware updated via the Synapse dashboard; no cleaning or water-resistance guidance was found in the sources.

Value and alternatives

At $169.99 the V4 Pro is a premium ergonomic mouse whose value depends on needing native 8,000 Hz polling, the 50K sensor, 14 controls and the new wheel; it is a harder sell for existing V3 Pro 35K owners. The V4 HyperSpeed at $109.99 offers the same shape, Gen-4 switches, Chroma and 12 controls for $60 less, and 1,000 Hz polling is sufficient for most users, making it the better value for most buyers. The Mouse Dock V2 Pro at $69.99 adds magnetic wireless charging and an 8,000 Hz transceiver but is not required for the V4 Pro’s flagship polling. Razer listed a black plus dock bundle at $209.99 (12% off), pre-order, shipping from October 30. Europe and UK pricing runs €179.99 / £169.99 for the Pro, €119.99 / £109.99 for the HyperSpeed and €69.99 / £59.99 for the dock. The V3 Pro 35K is still listed from $159.99. Because the product launched October 8, 2026 and full independent battery and sensor tests are only starting to appear, buyers in no rush may benefit from waiting for more test data. The closest value differentiator is native 8,000 Hz polling plus the 48-step wheel plus two extra controls in a 100 g shell; the 50,000 DPI headline is a specification ceiling, not a measured accuracy advantage.

Which model this is

This page covers the Razer Basilisk V4 Pro right-handed ergonomic wireless gaming mouse, black and white finishes, launched October 8, 2026.

The listing is ASIN B0HJB256T5; a separate ASIN B0HJBB153W also appears for a V4 Pro variant in search results.

Do not confuse it with the Razer Basilisk V4 HyperSpeed ($109.99, 94 g, Focus X 33K sensor, 12 controls), which is a different lower-tier model. The V4 Pro is the successor to the Basilisk V3 Pro 35K (112 g, Focus Pro 35K Gen-2 sensor, 13 controls, 13-zone Chroma). No separate model number, FCC ID or hardware revision was found in the sources read. Optional wireless charging works via a replacement puck with the Razer Mouse Dock V2 Pro ($69.99) or the Razer HyperFlux V2 pad.