Verdict: The Logitech MX Master 3S excels for desk work with its MagSpeed wheel and 3-device switching while the Razer DeathAdder V3 Hyperspeed dominates gaming with 63 g weight and 8000 Hz polling. Neither replaces the other due to divergent button layouts and sensor tuning. CNET and RTINGS reviews confirm the MX Master 3S averages 65+ days real-world battery while the DeathAdder V3 Pro hits 90 hours at 1000 Hz.
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Winner: Logitech MX Master 3S
Logitech MX Master 3S: 8.5/10
Razer DeathAdder V3 Hyperspeed: 7.5/10
Spec-by-spec comparison
Logitech MX Master 3S
Razer DeathAdder V3 Hyperspeed
sensor
8000 DPI optical
30000 DPI Focus Pro optical
weight
141 g
63 g
battery_life
70 days
90 hours
polling_rate
1000 Hz
8000 Hz
Logitech MX Master 3S
What works
MagSpeed electromagnetic scroll wheel with speed and ratchet modes
Multi-device pairing with up to 3 computers via Bluetooth or Logi Bolt
Thumbwheel and gesture button for productivity shortcuts
What doesn't
Heavier build limits fast gaming movements
Lower maximum polling rate than dedicated gaming mice
Razer DeathAdder V3 Hyperspeed
What works
Ultra-lightweight ergonomic shape for extended gaming sessions
Razer HyperSpeed wireless with 8K polling support
Focus Pro 30K sensor with zero smoothing or acceleration
What doesn't
Fewer productivity buttons and no horizontal scroll wheel
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