Shape

The shape of the AJ199 4K is best described as a uniformly sized-down Logitech G Pro X Superlight. Neither the front nor back flare out much, the sides curve in only moderately, and the hump is centered and only moderately pronounced. Even the design of the main buttons matches, as they are framed by ledges, and there is no CPI button at the top, too. The side buttons, however, are not spaced apart like on the GPX but rather positioned right next to each other. In addition, the main buttons feature moderately deep comfort grooves, which are not present on the GPX.


As for grip styles, I'd say the AJ199 4K is generally suited for all three main grip styles: palm, claw, and fingertip grip. It is a medium to small-sized mouse with a moderately pronounced hump, which should make it generally suit most hand sizes. For reference, my hands are 19 cm long and 10 cm wide, and I found the AJ199 4K comfortable in claw grip.

Dimensions

This table includes the dimensions of the Ajazz AJ199 4K and several other ambidextrous mice. "Front height" denotes the distance between the base and main buttons. Measurements with two decimals have been taken with a caliper, while those with one decimal have been taken with a ruler. For a full list of all measurements taken, please refer to this sheet compiled by an esteemed community member.


Below are some comparison shots with each of the measured mice:


Incott HPC01M Pro


Endgame Gear OP1we


Pulsar X2


VGN Dragonfly F1 Pro Max


Logitech G Pro X Superlight