The shape of the AX Wireless is entirely unchanged from the AX. With the AX, VAXEE slightly modifies the EC2 shape to better suit different needs. Essentially, the AX is a compressed EC2. Though the AX is shorter and slightly wider, the hump is still centered on the AX, but the left side raises higher, creating a bulkier body compared to the EC2, which is more elongated. Furthermore, the back edge is abridged to provide the palm more breathing space, as the main buttons sit slightly higher and no longer have comfort grooves. The changes don't alter the shape radically, but enough to where the way one can grip the mouse is noticeably changed. To simplify, the EC2 better suits claw or fingertip grip, whereas the AX better suits palm grip as it fills the hand more, though without restricting vertical movement. More specifically, the AX is particularly suited for what VAXEE likes to call "tilt grip," i.e., having the wrist rotated to the right instead of lying flat on the pad. This applies irrespective of the chosen grip style otherwise, so someone using a claw grip with a tilted wrist may find themselves in fact preferring the AX over the EC2 simply due to this particular design choice.
As for grip styles, I'd say the AX Wireless mostly suits palm and claw grip. It is a medium-sized mouse with a fairly pronounced hump, which should make it generally suit medium to large-size hands. For reference, my hands are 19 cm long and 10 cm wide, and I found the AX Wireless very comfortable in claw grip.
Dimensions
This table includes the dimensions of the VAXEE Outset AX Wireless and several other right-handed ergonomic 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.
VAXEE Outset AX Wireless Dimensions
AX Wireless
AX
Xlite V3 eS
Thorn
StormBreaker
DeathAdder V3 Pro
Base Length
10.9 cm
11.1 cm
11.3 cm
11.2 cm
10.8 cm
11.3 cm
Length (including overhang)
11.73 cm
11.75 cm
12.16 cm
11.99 cm
12.16 cm
12.76 cm
Front Height (lowest point)
1.3 cm
1.3 cm
1.4 cm
1.4 cm
1.2 cm
1.4 cm
Height (highest point)
4.34 cm
4.30 cm
4.18 cm
4.19 cm
4.13 cm
4.28 cm
Front Width (widest point)
6.14 cm
6.12 cm
6.07 cm
6.07 cm
5.96 cm
6.29 cm
Back Width (widest point)
6.60 cm
6.55 cm
6.45 cm
6.59 cm
6.35 cm
6.51 cm
Grip Width (narrowest point)
5.92 cm
5.94 cm
5.84 cm
5.95 cm
5.81 cm
6.07 cm
Below are some comparison shots with each of the measured mice: