Pulsar's X2F CrazyLight is literally half a mouse — and weighs just 29 grams

Pulsar has announced the X2F CrazyLight, a 29-gram wireless gaming mouse that achieves its extreme weight by simply cutting the rear half of the shell off entirely. It launches September 28, 2026, and pricing hasn't been revealed yet.

The X2F is essentially just the front section of a mouse — sensors, switches, and battery included, back half gone. It runs Pulsar's new XS2 sensor, though full specs for that chip aren't out yet. The previous-gen XS1 topped out at 32,000 DPI, 750 IPS, and 50 G acceleration, so the XS2 should push those numbers higher. The mouse also supports up to 8,000 Hz polling, uses a TTC Gold encoder, Pulsar Optical switches, and packs a 210 mAh battery. Crucially, it skips the honeycomb shell that most ultralight mice rely on to shed grams — the weight saving comes purely from the truncated form factor.

Pulsar isn't the first to go this route. G-Wolves' HSK Pro V2.0 has been doing the half-mouse thing for a while and comes in even lighter at 26.8 grams. Pulsar itself already had the X2 CrazyLight Mini at 35 grams, so the X2F is the brand's lightest yet. For comparison, the Razer Viper V4 Pro — currently considered the top gaming mouse overall — uses a Focus Pro sensor with 50,000 DPI, 930 IPS, and 90 G acceleration. The Logitech G Pro X2 Superstrike, the pick for competitive play specifically, offers 44,000 DPI, 888 IPS, and 88 G. Whether the XS2 can close that gap matters a lot for how the X2F stacks up after launch.

The obvious catch is that this form factor only works with a fingertip grip — claw and palm grip players are out entirely, which keeps it firmly niche even within the competitive scene. One missed opportunity: the 210 mAh battery is visible in product shots but isn't hot-swappable, which feels like a wasted chance to let players swap in a smaller cell and shave even more weight. No hands-on impressions yet, so the real verdict waits until closer to the September 28 release date.