Shape

While the shape of the ES21M could be called generic, finding an exact match isn't easy. The centered and moderately tapered hump, which slopes down gradually towards both ends, is somewhat reminiscent of the Logitech G Pro X Superlight, and the front and back barely flaring out too is a shared trait. At the same time, the ES21M is smaller, and the fairly deep comfort grooves on the main buttons change how the mouse feels compared to the Superlight. The comfort grooves also compensate some of the additional front height present on the ES21M compared to recent ambidextrous design such as the Hitscan Hyperlight. Overall, a thoroughly non-offensive design that works well in practice.


As for grip styles, I'd say the ES21M is generally suited for claw and palm grip. It is a medium-sized mouse with a fairly 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 ES21M very comfortable in claw grip.

Dimensions

This table includes the dimensions of the RAWM ES21M 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:


SCYROX V8


Hitscan Hyperlight


LAMZU Maya X


Logitech G Pro X Superlight 2