When evaluating Logitech G305 sensor accuracy, gamers and professionals seek precision that rivals high-end mice without breaking the bank. The Logitech G305 Lightspeed’s HERO 12K sensor delivers exceptional performance, with near-perfect tracking, minimal deviation, and flawless 1:1 cursor movement across DPI ranges. In 2026, it remains a benchmark for budget wireless mice, scoring 8.7/10 on RTINGS for sensor consistency and praised in recent reviews like Vivid Repairs for “zero spinouts, no acceleration artifacts.”
Priced at $26–$50 in the US Amazon deals frequent, it’s ideal for US setups with high humidity and small desks.
Whether for CS2 flicks or Photoshop editing, Logitech G305 sensor accuracy holds up, with <0.2% error rates in pro benchmarks.
Image Credit: Tom’s Hardware
HERO 12K Sensor: Core Specs & Why Accuracy Matters
The Logitech G305 sensor accuracy stems from Logitech’s proprietary HERO (High Efficiency Rated Optical) 12K sensor, a custom PixArt derivative optimized for power and precision. Key specs:
- DPI Range: 200–12,000 (50 CPI increments via G HUB)
- Tracking Speed: >400 IPS (10+ m/s)
- Acceleration: >40G
- Lift-Off Distance (LOD): ~1.2–1.5mm (non-adjustable)
- Polling Rate: Up to 1000Hz (125/250/500/1000 options)
Unlike older PMW3366 sensors, HERO eliminates smoothing, filtering, or acceleration, ensuring raw 1:1 input—crucial for FPS where micro-adjustments decide clutches. In 2026 Vivid tests, it matched PixArt 3395 (in $150+ mice) on cloth/hard pads.
Logitech G305 CPI Precision & Deviation Tests
CPI (Counts Per Inch) accuracy measures if set DPI matches actual movement. Reddit’s in-depth analysis tested defaults (400/800/1600/3200 CPI): deviations <1%, e.g., 400 CPI measured 401.3 (+0.3%).
| CPI Setting | Measured CPI | Deviation (%) | Source |
|---|---|---|---|
| 400 | 401.3 | +0.33 | |
| 800 | 799.2 | -0.10 | |
| 1600 | 1598.5 | -0.09 | |
| 3200 | 3195.1 | -0.16 | |
| Overall | – | 0.64% avg | RTINGS |
Graph from tests shows near-linear response—no “steps” or drops.
SRAV, Jitter & Worst Tracking Error: Deep Dive
SRAV (Speed-Related Accuracy Variance) tests acceleration at varying speeds:
- @1600 CPI: 0.13% —imperceptible.
- TechPowerUp: “Perfect control speed,” variable framerate but no spinout >400 IPS.
Jitter: Near-zero; pixel-perfect micro-adjusts in Valorant (Vivid 2026).
Worst Tracking Error: -2.69% (RTINGS)—cursor slightly undershoots at extremes, but rare.
| Metric | G305 Result | Rating (RTINGS) | Notes |
|---|---|---|---|
| SRAV @1600 CPI | 0.13% | Excellent | No accel |
| Jitter | <0.2% | Flawless | Vivid flicks |
| Tracking Error | -2.69% | Good | Rare high-speed |
Graph: Straight lines confirm low variance.
Real-World Logitech G305 Sensor Performance in 2026
Vivid Repairs 2026: “Pixel-perfect” in Valorant headshots (800 DPI), no jitter in Apex flicks (1600 DPI). Works on glass? No, but excels on cloth/hard pads—calibrate via G HUB for BD desks.
Watch:
sensor demo at 2:50 confirms smoothness.
Comparisons: G305 Sensor vs Competitors
| Mouse | CPI Error | SRAV | IPS |
|---|---|---|---|
| G305 HERO 12K | 0.64% | 0.13% | 400 |
| G Pro X Superlight | 0.36% | 0.00% | 400 |
| Razer Viper Mini | 0.50% | 0.10% | 400 |
| Lamzu Atlantis | 0.20% | 0.05% | 650 |
G305 punches above weight; HERO = premium for budget.
Rare Issues & Maintenance for Peak Accuracy
No widespread sensor accuracy problems—unlike double-clicks. Fixes: Compressed air clean, G HUB surface tune. LOD fixed at 1.5mm; low for repositions.
Tips to Maximize G305 Sensor Accuracy
- DPI: 400–1600 for FPS
- Pad: Large cloth (G640 ~2,000 BDT Daraz)
- G HUB: 1000Hz, disable smoothing
FAQs: Logitech G305 Sensor Accuracy
HERO 12K vs PixArt 3395?
Identical performance.
Spinouts at high speed?
No, >400 IPS.
Conclusion
Logitech G305 sensor accuracy is outstanding—flawless tracking, low errors, unbeatable value. For US users, it’s a no-brainer. Grab from Amazon; upgrade only for lighter weight.
