The Logitech G305 is the best budget mouse for CS2 in 2025. At roughly $35–$40, it runs the HERO 12K sensor with zero smoothing, hits 1000Hz polling, and weighs 99g — specs that hold up against mice costing three times as much. If you need wired, the Razer DeathAdder V3 HU and SteelSeries Aerox 3 are close runners-up, but the G305 wins on value-per-performance for most players.
Quick Specs Comparison
| Product | Weight | Sensor | Polling Rate | Price | FloatPeak Score |
|---|---|---|---|---|---|
| Logitech G305 | 99g | HERO 12K | 125Hz / 1000Hz | ~$35 | 88/100 |
| Razer DeathAdder V3 HU | 55g | Focus Pro 30K | 1000Hz | ~$50 | 86/100 |
| SteelSeries Aerox 3 | 68g | TrueMove Core | 1000Hz | ~$40 | 82/100 |
| Razer Viper Mini | 61g | 5G 8500 DPI | 1000Hz | ~$25 | 79/100 |
| Endgame Gear XM1r | 70g | PAW3370 | 1000Hz | ~$45 | 85/100 |
Top Budget CS2 Mouse Picks — Ranked and Compared
Budget in the peripheral world means under $50. That bracket used to mean compromises on sensor quality and click latency. That’s no longer true. Three of the five mice above run sensors with zero measurable hardware smoothing at any DPI setting — the primary thing that actually matters when snapping to heads in CS2.
1. Logitech G305 — Best Overall Budget Pick
The Logitech G305 Check price on Amazon runs the HERO 12K sensor, which Logitech’s own testing rates at up to 400 IPS tracking speed. In practice, for CS2 where most players use 400–800 DPI (Prosettings.net, 2024: median pro DPI sits at 400), the HERO 12K is overkill in the best possible way. Polling is selectable between 125Hz and 1000Hz via a switch on the bottom. The 99g weight is slightly heavier than top-tier options but still comfortable for both palm and claw grip. The AA battery adds about 23g, but runtime stretches to roughly 250 hours — longer than any competing wireless mouse at this price.
One real downside: the stock feet are mediocre and will drag on most cloth pads. Budget $6–$8 for aftermarket PTFE feet and the glide immediately improves. Clicks use Omron D2FC-F-7N switches, which feel slightly mushy compared to the optical switches on higher-end Razer mice, but latency tests in the community consistently show sub-2ms click-to-response time at 1000Hz — more than competitive for ranked play.
2. Razer DeathAdder V3 HU — Best Ultralight Budget Option
The Razer DeathAdder V3 HU Check price on Amazon is the honeycomb-shell version of the full DeathAdder V3, coming in at 55g. The Focus Pro 30K sensor here is effectively the same optical unit found in the $160 DeathAdder V3 Pro. At ~$50 it technically stretches the budget ceiling, but no other wired mouse at this price gets you a flagship-class sensor in an ultralight shell. The ergonomic right-handed shape suits palm and relaxed claw grips. If you have medium-to-large hands and play at low sensitivity, this is the wired option to beat.
3. Endgame Gear XM1r — Best for Claw/Fingertip Grip
The Endgame Gear XM1r Check price on Amazon pairs the PAW3370 sensor with Kailh GM 8.0 switches — among the most consistent mechanical switches in this price class. At 70g and a compact 122mm length it suits fingertip and claw grip players better than the DeathAdder. The PAW3370 runs without smoothing from 100–19,000 DPI. Community consensus from sensor testers on MouseReview puts it in the same performance tier as the HERO 12K for CS2 use cases. The XM1r is also available with a textured side grip that reduces slippage during aggressive swings.
4. SteelSeries Aerox 3 — Best Honeycomb Budget Mouse
The SteelSeries Aerox 3 Check price on Amazon weighs 68g with a TrueMove Core sensor (up to 18,000 DPI, 300 IPS). The honeycomb shell saves weight but the TrueMove Core is a step below the PAW3370 and HERO 12K — specifically, it shows slight smoothing at DPI settings above 3200, which is irrelevant for CS2. Below 1600 DPI it performs cleanly. The IP54 splash resistance is a genuine bonus if you game in humid environments or have drinks nearby. At ~$40, it’s a reasonable pick, but the G305 edges it out on sensor performance per dollar.
5. Razer Viper Mini — Best Ultra-Budget Option
The Razer Viper Mini Check price on Amazon sits at ~$25, making it the true entry-level recommendation. The 5G optical sensor caps at 8500 DPI and 300 IPS — lower ceiling than competitors, but for CS2 at standard play DPI (400–800) it’s entirely sufficient. At 61g with optical switches rated to 70 million clicks, the click feel is noticeably better than the Omron mechanicals in the G305. The main limitation is the braided cable, which creates drag and requires a bungee to match the feel of a wireless or paracord cable. For anyone stepping up from a stock office mouse, this is the easiest recommendation at the lowest cost of entry.
Sensor Performance and CS2-Specific Testing
CS2’s movement model heavily penalizes prediction errors during counter-strafing. The sensor gap that matters isn’t DPI ceiling — it’s LOD (lift-off distance) and angle snapping. Both will corrupt micro-adjustments when re-acquiring a target after a strafe stop.
Based on community hardware testing aggregated on MouseReview and Rtings:
- HERO 12K (G305): LOD approximately 1mm on most pads, zero angle snapping at default settings. Performs at 1000Hz with no acceleration or smoothing up to 400 IPS.
- Focus Pro 30K (DeathAdder V3 HU): LOD roughly 1–2mm depending on surface, zero smoothing. Razer’s Smart Tracking feature can be disabled in Synapse if you prefer raw input.
- PAW3370 (XM1r): LOD 1–2mm, clean tracking with no acceleration. Among the most tested sensors in the community with near-universal positive data.
- TrueMove Core (Aerox 3): LOD roughly 2mm, slight smoothing appears above 3200 DPI — irrelevant at CS2 pro settings.
- 5G 8500 (Viper Mini): LOD 2–3mm, no angle snapping, performs cleanly within its DPI range.
For sensitivity setup on any of these mice, check our sensitivity guide — polling rate and eDPI calculation matter more than most players realize. Pro data is useful context here: according to Prosettings.net (2024), over 68% of tracked CS2 professionals use 1000Hz polling, with a growing minority (roughly 12%) moving to 4000Hz or 8000Hz on premium devices. None of the mice in this guide support above 1000Hz, which is the correct tradeoff for sub-$50 hardware.
Notable pro preferences for context: ZywOo uses a Logitech G Pro X Superlight 2 at 400 DPI; donk runs 400 DPI on SteelSeries hardware; ropz has historically used the G Pro Wireless. None use sub-$50 mice professionally, but their DPI preferences — nearly all at 400–800 DPI — confirm that sensor performance at low DPI is what matters, which is exactly where budget sensors are strongest. See more pro setups in our CS2 gear hub.
Who Should Buy What
- You want the best overall value under $40: Buy the Logitech G305. Wireless, clean sensor, long battery life. Accept the stock feet and budget for replacements.
- You want the lightest wired mouse under $50: Buy the Razer DeathAdder V3 HU. The 55g weight and Focus Pro 30K sensor punch well above this price bracket.
- You have a claw or fingertip grip: Buy the Endgame Gear XM1r. The compact shape and Kailh switches make it the most grip-specific option here.
- You want splash resistance or play in a warm room: Buy the SteelSeries Aerox 3. IP54 rating is unique at this price point.
- You’re on a strict budget under $30: Buy the Razer Viper Mini. Get a mouse bungee or paracord cable replacement and it punches above its price.
- You play with a palm grip and medium-to-large hands: The DeathAdder V3 HU ergonomic shape is the best fit; the G305’s symmetrical shell is a distant second.