Last Updated: May 2026
The Logitech G305 and Razer DeathAdder V3 are two of the most popular gaming mice in the budget to mid-range category — both with outstanding sensors, both under $70, and both consistently recommended by reviewers. But they take different approaches and suit different types of players. This guide breaks down the key differences so you can make the right call.
Quick Verdict
Choose the G305 if you want a lightweight wireless mouse with exceptional 250-hour battery life at a budget price.
Choose the DeathAdder V3 if you want a wired ultralight mouse with optical switches, a larger ergonomic right-hand shape, and flagship sensor performance at a great price.
Side-by-Side Specs
| Feature | Logitech G305 | Razer DeathAdder V3 |
|---|---|---|
| Sensor | HERO 12K | Focus Pro 30K |
| Max DPI | 12,000 | 30,000 |
| Switches | Mechanical | Razer Optical Gen-3 |
| Buttons | 6 programmable | 6 programmable |
| Weight | 99g | 59g |
| Shape | Ambidextrous | Right-handed ergonomic |
| Connection | LIGHTSPEED wireless | Wired USB-C |
| Battery | 250 hours (1x AA) | N/A |
| RGB | No | No |
| Software | Logitech G HUB | Razer Synapse 3 |
| Price | ~$30–40 | ~$50–70 |
Sensor Performance
The DeathAdder V3 uses Razer’s Focus Pro 30K sensor — a flagship sensor with essentially flawless tracking, zero smoothing, and consistent accuracy across all surfaces. It’s among the best gaming sensors available.
The G305 uses Logitech’s HERO 12K sensor — accurate and reliable for gaming but an older generation than the HERO 25K found in pricier Logitech mice. In practice the difference is imperceptible for casual to intermediate gaming, but the DeathAdder V3’s sensor has a measurable edge for serious competitive play.
Winner: DeathAdder V3
Weight — A Significant Difference
This is the most striking difference between the two mice. The DeathAdder V3 weighs just 59g — a dramatic improvement over its predecessor the V2 which weighed 96g. At 59g it’s an ultralight mouse that suits fast FPS movements and reduces hand fatigue during long sessions.
The G305 at 99g is noticeably heavier than the DeathAdder V3. It’s not heavy by traditional standards but the 40g difference is felt during extended gaming. For players who prefer a lighter mouse for FPS play the DeathAdder V3 has a clear advantage.
Winner: DeathAdder V3 for FPS and weight-sensitive players
Switches
The DeathAdder V3 uses Razer’s Gen-3 optical switches — rated for 90 million clicks with 0.2ms actuation. Optical switches eliminate double-clicking issues and last longer than mechanical alternatives.
The G305 uses standard mechanical switches — reliable and tactile, rated for 10 million clicks. Good performance but not quite at the optical switch longevity or actuation speed level.
Winner: DeathAdder V3
Shape and Ergonomics
The G305 is ambidextrous — works for both left and right-handed players with a compact shape that suits fingertip and claw grip. It’s a good all-round shape for small to medium hands.
The DeathAdder V3 is right-handed only with a sculpted ergonomic body — wider at the back, natural thumb rest, and designed for palm and claw grip. For right-handed players with medium to large hands the DeathAdder V3’s shape is extremely comfortable for long sessions.
Winner: G305 for ambidextrous/left-handed use, DeathAdder V3 for right-handed ergonomic comfort
Wireless vs Wired
The G305 uses Logitech’s LIGHTSPEED wireless — 1ms response time, effectively indistinguishable from wired. Battery life of 250 hours on a single AA battery is exceptional — you can go weeks between battery changes. For players who want wireless freedom without battery anxiety, the G305 is outstanding.
The DeathAdder V3 is wired via USB-C — zero latency, no battery to manage, and the Speedflex cable is designed to minimize drag. For players who don’t mind wired, it’s simpler and cheaper.
Winner: G305 for wireless freedom, DeathAdder V3 for wired simplicity
Price and Value
The G305 at $30–40 is one of the best value gaming mice available — LIGHTSPEED wireless, HERO 12K sensor, and 250-hour battery life at a price that beats most wired competitors. Exceptional value.
The DeathAdder V3 at $50–70 is more expensive but delivers flagship sensor performance, optical switches, and an ultralight 59g build. Also exceptional value at its price point.
Both mice punch significantly above their price — the decision comes down to which features matter most to you.
Winner: G305 for budget value, DeathAdder V3 for performance per dollar
What Gamers Say
The G305 has over 23,000 Amazon reviews at 4.7/5 — exceptional for any product. Users consistently praise the battery life, lightweight feel, and wireless performance. It’s been a top budget wireless recommendation for years.
The DeathAdder V3 launched to strong reviews, widely praised for its dramatic weight reduction from the V2, the Focus Pro sensor, and optical switches. It’s quickly established itself as one of the best wired gaming mice under $70.
Which Should You Buy?
Buy the G305 if:
- Wireless is a priority
- Budget is under $40
- You’re left-handed or prefer ambidextrous shape
- Battery life matters — 250 hours is exceptional
- You want a proven budget wireless recommendation
Buy the DeathAdder V3 if:
- You prefer wired or don’t need wireless
- Ultralight weight (59g) is important for FPS play
- You have medium to large right hands and prefer ergonomic mice
- You want the best sensor and optical switches at this price
- Budget extends to $50–70
Frequently Asked Questions
Is the G305 still worth buying with the DeathAdder V3 available?
Yes — the G305 remains one of the best budget wireless gaming mice available. At $30–40 with LIGHTSPEED wireless and 250-hour battery life it’s hard to beat for value. The DeathAdder V3 is a better mouse overall but costs more and is wired.
What’s the difference between the DeathAdder V2 and V3?
The V3 is dramatically improved — weight dropped from 96g to 59g, switches upgraded to Gen-3 optical, and the Focus Pro 30K sensor replaced the Focus Pro 20K. If you’re choosing between them, always buy the V3.
Is the G305 good for competitive FPS?
Yes — LIGHTSPEED wireless provides lag-free performance and the HERO 12K sensor is accurate for competitive play. At 99g it’s slightly heavier than ideal for ultra-competitive FPS but many players use it successfully in ranked play.
Does the DeathAdder V3 have a wireless version?
Yes — the DeathAdder V3 HyperSpeed is the wireless version. It adds LIGHTSPEED wireless and Bluetooth connectivity but costs significantly more. If wireless is important the V3 HyperSpeed is worth considering.
Do you use either of these gaming mice? Let me know what you think in the comments. Also, if you are still undecided, we also just compared the Razer Basilisk v3 vs G502. Check out this guide if you are considering either of these mice.