Really want to get the keychron m5 vertical gaming mouse.
It's got paw3950 sensor + realtek 8762g MCU, should be around 150 hours
So, it's a fairly power efficient MCU, but not as gud' as if it had the latest nordic nrf54L, 750 hrs.
But 98grams.
Coming from 60g mices, taping 6 quarters to it, it does feel quite heavy, for direction changes. There's really alot of momentum in +40g.