Pulsar eS FS-1
Full specifications from our spec database — measured values, not marketing copy
- Sensor
- XS-1 Sensor
- Max DPI
- 32K
- Polling rate
- 8000 Hz
- Shape
- Symmetrical
- Main switches
- Optical Switches
- Button force
- —
- Suited grips
- Claw / Fingertip
- Weight
- 57 g
- Dimensions (L×W×H)
- 12.5 × 6.4 × 3.7 cm
- Size class
- Medium
- Connection
- Wireless
- Price
- Not tracked — we don't publish prices we can't verify
Pros using this mouse 1 pros in our CS2 database run this mouse — tap any card for their full settings, crosshair and viewmodel
Falcons Esports Our take 18 pros — two rival brands, one shell, dongle included
Pulsar and VAXEE have spent years answering each other's shapes. The FS-1 is what happens when they stopped: an official co-development, published by Pulsar as 'developed by Pulsar and VAXEE', designed — in their own words — around consistency as the standard rather than immediate impact. Eighteen pros, teses among them, are already testing that thesis in tournaments.
The spec reads like a treaty between two engineering cultures. Pulsar's XS-1 flagship sensor — 32,000 DPI, 750 IPS, 50G — with a fixed 20K FPS Turbo Mode that eliminates the per-DPI frame-rate drift most sensors ship with. VAXEE's weight philosophy: 56g (±2, without skates or cable, officially) at 124 x 64 x 37mm, a low-hump, narrow-waist symmetrical shell Pulsar explicitly positions for both palm and claw rather than a single grip religion. 100M-click optical switches with a TTC Gold dust-proof encoder; a 400mAh cell Pulsar rates to 160 hours; and the LINK 8K receiver — included, not sold separately, with two physical buttons on the puck itself for driver-free DPI and polling changes. Unlike most of the Western flagship field, it includes the accessories others sell separately.
The short version: the most complete package on this page — 56g, 8K included, 160-hour battery, and a shape built by the two brands that spent 2024–2025 copying each other. The FS-1 is what consensus looks like when it's put in a box.
Pulsar's software story is web-first (Bibimbap) — excellent for driverless purists, thin if you want deep macro engines.
56±2g is quoted without skates; swap in full-size feet and you're closer to 58–59g — still light, but know the measurement rule before comparing.
Who it's for
- Palm-claw hybrids who want one shell that serves both grips honestly.
- Driverless tuners — the 8K puck has buttons; no software on competition PCs.
- Battery-anxious 8K buyers: 400mAh/160h is the class leader.
- Spec-sheet shoppers: fixed 20K FPS Turbo means no per-DPI tracking drift.
Who should skip it
- Ultra-light chasers under 50g — that's its siblings below.
- Left-handed players; side buttons are left-only.
- Macro-heavy MMO users: five buttons is five buttons.
Alternatives to consider
Each is a real pick, not filler — with one concrete reason to choose it over this mouse.
The other half of the collaboration's DNA, with the original XE shape.
XE V2 Wireless →Same sensor family, aggressive low weight, high hump for locked-in claw.
X2N CrazyLight →The incumbent template this shape competes against — larger pro base, older platform.
Viper V2 Pro →More from Pulsar
FAQ
What is the Pulsar x VAXEE collaboration exactly?
Pulsar's official copy is direct: FS-1 was developed by Pulsar and VAXEE — Pulsar's performance focus meets VAXEE's precision craftsmanship and 20+ years of experience. Two esports-first brands sharing one shape program instead of cloning each other.
What does consistency as the standard mean?
It is the official design thesis: refined not for immediate impact, but to maintain predictable, controlled performance over time. Hardware-wise: fixed 20K FPS Turbo sensor mode (no per-DPI drift), palm-and-claw low hump, and an 8K receiver with physical buttons for driverless changes.
56g — lighter or heavier than the Viper V2 Pro in hand?
On paper it sits between the Viper V2 Pro (58g) and the 49-54g ultralights, and the official number excludes skates and cable. In hand the narrow waist reads lighter than the figure. 124 x 64 x 37mm — a compact-medium.
Why is the battery 160 hours?
A 400mAh cell plus firmware optimization, per the official spec — among the largest in this weight class. At 8K it drops sharply like everything else; 160h is a 1K-class number (Razer's 8K-capable mice quote 90h at 1K for comparison).
Who uses the FS-1 professionally?
18 pros in our database, including teses. The VAXEE connection matters: players who wanted a modern VAXEE-flavored shell on Pulsar's sensor platform now have an official path.