Two ergonomic palm mice sit close together in the Pulsar mice range, and the 6g gap in weight is just one of several differences. The Pulsar Pro Series JV-X lands at about 56g in a slimmer shell, while the Pulsar ZywOo The Chosen Gen.2 weighs 62g and adds a weight bar to tune. The right choice depends on your hand width, your grip and how much you want to adjust.

Quick Answer

Pick the JV-X if your hand is narrower, if you slip between palm and relaxed claw, or if you want the lighter figure of about 56g in a 62mm-wide shell. Pick The Chosen Gen.2 if you grip with a full palm, want a broader 67.5mm shell, or like the idea of tuning balance with a 5.8g weight module. Both are Medium sizes with an XS-1 sensor, optical switches and 8000Hz capable receivers, so the decision comes down to shape, weight and software.

📏 Shell size and shape, millimetre by millimetre

The dimensions tell the story better than the adjectives do, so here they are side by side.

  • JV-X: 121 x 62 x 40.6mm (L x W x H), at about 56g.
  • The Chosen Gen.2: 119.4 x 67.5 x 43.5mm (L x W x H), at 62g +/-2g.

The JV-X is the longer mouse by 1.6mm but narrower by 5.5mm and lower by almost 3mm. The Chosen Gen.2 is the broader and taller of the two, with more hump under the palm. Treat the length difference as noise and the width difference as the real one: 5.5mm across the shell is easy to feel when your palm rests on it for an hour. A big hand that wants to rest its whole weight on the shell will feel at home on the Chosen Gen.2. A medium hand that wants support without the bulk will lean to the JV-X.

Grip, as each page lists it

The JV-X is recommended for palm and relaxed claw grips, and the page describes an ergonomic palm shape. The Chosen Gen.2 is recommended for palm grip alone. If your hand arches into a relaxed claw halfway through a match, the JV-X has that covered in writing, and the Chosen Gen.2 does not claim it.

⚖️ Weight, and what you can do about it

The JV-X at about 56g is fixed. You get a mouse and live with it, and the box includes a sheet of 16 UHMW-PE dot skates for the feet.

The Chosen Gen.2 at 62g carries a 5.8g weight bar, a screwdriver and two screws in the box, so you can adjust total weight and centre of gravity. Evetech does not list a weight figure with the bar fitted or removed, so a kitchen scale is the way to get your own. If you enjoy tuning, that option is a real advantage. If you would rather fit a mouse and forget it, the JV-X asks less of you.

🔌 Receiver, software and the small stuff

Both mice use 2.4GHz wireless through a receiver in the box, and both can report up to 8000Hz when the PC behind them meets the maker's requirement of a Ryzen 5 or Core i5 class CPU and a USB 3.0 port. The XS-1 sensor reaches 32,000 DPI at 750 IPS in either, and optical switches mean neither is prone to the double-click fault of worn switches.

The differences are in how you manage them:

  • JV-X: an 8K dongle, with settings in desktop software that needs Windows 7 or higher.
  • The Chosen Gen.2: a Link 8K Receiver whose two buttons and LED switch DPI and more with no program open, plus Bibimbap web software for DPI, polling rate and button mapping in the browser.
  • Scroll wheel: The Chosen Gen.2 states a dust-proof encoder. The JV-X page does not.

If you prefer to keep changes inside a browser and use the receiver's own buttons for quick changes, that points to The Chosen Gen.2. If you prefer a regular desktop program, the JV-X has one.

🧭 A quick way to decide

Put your hand flat on the desk beside a ruler and measure the width of your palm at its broadest point, then the distance from the base of your palm to the end of your middle finger. Compare both against the shell sizes above. A mouse much longer than your palm leaves your fingers hanging over the buttons, and one that is too short pushes the heel of your hand off the back.

Then ask three plain questions:

  1. Do you change grip during a session? If you drift between palm and a relaxed claw, the JV-X is the one whose page covers both.
  2. Do you want to adjust the mouse? If so, the weight bar and the receiver buttons on The Chosen Gen.2 give you more to play with.
  3. How much desk do you have? A narrower shell and a lighter weight are easier to live with when space is tight.

Neither choice is a mistake. Both mice share a sensor, a polling ceiling and the same optical switch approach, so you are choosing a fit rather than a tier.

🖥️ Fitting either one to your desk

A narrow mouse leaves more elbow room beside a laptop or a keyboard, and the JV-X at 62mm wide is the friendlier option on a shared flat desk. The broader Chosen Gen.2 wants a bit more pad space to sweep without bumping things. Measure your hand and your free desk area at home with a ruler, because Evetech sells online and the numbers are what you will go on.

Browse the gaming mice category at Evetech to see both, or open the wireless mouse selection. Prices sit on each product page at Evetech. Both are sold to South African buyers. The Pulsar family puts both ergonomic palm mice on one screen along with the other weights.

Frequently Asked Questions

What separates them in size?

JV-X is 121 x 62 x 40.6mm. The Chosen Gen.2 is 119.4 x 67.5 x 43.5mm: slightly shorter, but 5.5mm wider and almost 3mm taller.

How far apart are they in weight?

The Chosen Gen.2 is 62g, the JV-X about 56g. The 5.8g module belongs to the Chosen Gen.2 alone, so it is the one you can adjust.

Where does a relaxed claw fit?

The JV-X is listed for palm and relaxed claw. The Chosen Gen.2 is listed for palm grip alone, so a hand that relaxes into a claw leans to the JV-X.

How does each connect?

Both run on 2.4GHz. The JV-X plugs in an 8K dongle, and the Chosen Gen.2 uses the Link 8K Receiver, whose two buttons and LED handle quick changes.

What software does each use?

JV-X uses desktop software on Windows 7 or higher. The Chosen Gen.2 uses Bibimbap web software.

Does one have a special encoder?

Yes. The Chosen Gen.2 states a dust-proof encoder and the JV-X does not.

Who needs more desk space?

The Chosen Gen.2, at 67.5mm wide. The JV-X, at 62mm, leaves more room beside a laptop.

Ready to pick your palm mouse? Visit the gaming mice category at Evetech, compare the JV-X and The Chosen Gen.2 against your hand width, and choose the shell that fits.