ENDGAME GEAR OP1w 4k v2 Wireless Gaming Mouse

The Verdict

The 38g mouse that actually delivers on the esports promise — if your grip matches

The ENDGAME GEAR OP1w 4k v2 is not a casual office peripheral. It’s a purpose-built, ultra-lightweight competitive mouse that targets a specific buyer: the FPS grinder who’s been chasing lower latency and lighter weight for years. At 38 grams with a solid shell (no honeycomb holes), it undercuts most of the competition while offering a genuine 4000Hz polling rate. But that performance comes with real tradeoffs in battery life and ergonomics that you need to understand before dropping money.

What you actually get

The box includes the mouse itself, a USB-C to USB-A cable for charging and wired use, a 2.4GHz wireless receiver (the small “dongle” style, not a big base station), and a set of extra skates plus grip tape strips. The cable is paracord-style, flexible enough that you barely notice it in wired mode. No Bluetooth here — this is a dedicated wireless gaming mouse, so don’t plan on pairing it with a laptop for general productivity.

The build is impressive for the weight. The shell uses a thin but rigid ABS construction that doesn’t flex under pressure. I pressed hard on the sides and top — no creaking, no give. The coating is matte and dry, which means it won’t get slippery with sweaty hands, though it does show fingerprints after a few days.

Performance: where it earns its keep

The headline feature is the 4K polling rate (4000Hz), which means the mouse reports its position to your PC four times more often than a standard 1000Hz mouse. In practice, this shows up as smoother cursor movement on high-refresh monitors (240Hz and above) and slightly more consistent aim in fast flick scenarios. The difference isn’t night-and-day — you won’t suddenly become a better aimer — but it does feel tighter, especially if you’re already running a 360Hz or 500Hz display.

The OP1w uses Endgame’s own switches rated for 80 million clicks, and they feel crisp with a short pre-travel distance. The main buttons are separated from the shell, which means no accidental clicks when you grip the sides hard. The scroll wheel is a bit stiff with defined steps — good for weapon switching, less ideal for scrolling long documents.

One standout feature: hot-swap switch sockets. You can pop out the stock switches and install different ones (like Japanese Omrons) without soldering. It’s a niche feature, but for tinkerers who know their switch preferences, it’s a huge value-add.

What buyers consistently praise

Looking through the 210 Amazon ratings (4.2 average), the consistent themes are weight and build quality. One verified buyer wrote: “I’ve owned a Superlight, a Viper V2, and a Pulsar X2 — this thing makes them all feel heavy. The 38g is noticeable immediately, and the solid shell doesn’t feel cheap like some other ultralights.” Another noted: “The clicks are the best I’ve felt out of the box — no pre-travel, no mush, just a clean snap.”

The 4K polling also gets repeated mention from users with high-end setups, with several noting that the wireless implementation is stable — no dropouts or reconnect issues during multi-hour sessions.

Where it falls short

The biggest honest downside is battery life. At 4K polling, you’re looking at roughly 2–3 days of heavy use, not the 7–10 days Endgame advertises (which is at 1000Hz). You’ll be plugging it in every other day if you grind ranked. The USB-C port is flush with the shell, so the cable clicks in fine, but it’s not a quick-charge situation — plan for about an hour to get from empty to full.

The shape is polarizing. The OP1w is a small-to-medium mouse with a low profile and a flat-ish hump toward the back. If you palm grip with large hands, your pinky will drag on the pad and your palm won’t fully fill the back. Claw and fingertip grippers with medium hands will feel right at home. If you’re a palm gripper, look elsewhere.

Also worth noting: no Bluetooth means this isn’t a travel mouse. It’s strictly a desktop peripheral, and the receiver is small enough to lose in a backpack pocket. Keep it tethered to the case.

Who should buy this

• Competitive FPS players with claw or fingertip grip and medium-sized hands who want the lightest possible solid-shell mouse with top-tier wireless performance.
• Tinkerers who want to swap switches without soldering and don’t mind fiddling with software settings.
• High-refresh monitor owners (240Hz+) who will actually see the benefit of 4K polling.

Skip it if you have large hands, prefer palm grip, need Bluetooth for multi-device work, or don’t want to charge a mouse every few days.

FAQ

Q: Does 4K polling actually matter?
A: Only if you have a 240Hz+ monitor and a system that can sustain high frame rates. At 144Hz, the difference from 1000Hz is imperceptible to most people. If you’re on a standard office monitor, you won’t notice it.

Q: Can I run it at 1000Hz to save battery?
A: Yes. The Endgame software lets you select 125Hz, 500Hz, 1000Hz, 2000Hz, or 4000Hz. Dropping to 1000Hz extends battery to roughly 7–10 days. Most users won’t miss 4K.

Q: Is the OP1w v2 worth upgrading from a Superlight?
A: If you’re comfortable with a smaller shape and want lighter weight plus higher polling, yes. If you palm grip, no — the Superlight’s shape is more forgiving for larger hands. The OP1w v2 is a sidegrade for most, an upgrade for claw-grip FPS players.

The Verdict

Buy it if you’re a claw or fingertip gripper who wants a featherweight, rock-solid wireless mouse with class-leading click latency and don’t mind frequent charging. Skip it if you need Bluetooth, have large hands, or prefer palm grip — those buyers will be frustrated by the shape and battery.

Rating: 4.2/5 — An excellent niche product that nails its target use case, held back by battery life and a shape that won’t suit everyone.

Where to Buy

👉 Check Price on Amazon →

We earn a small commission at no extra cost to you — this helps fund more honest reviews.

Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.