Overview
The G703 and G502 serve roughly the same audience.
If you have the budget you should get the G703, the G703 shape should be suitable for people who do like the G502 shape while also being wireless and lighter, the G703 is a much better mouse than the G502.
The only people that should consider the G502 over the G703 are folks that know they love the G502 shape, need a bunch of buttons and infinite scroll, or love heavy ass mice.
Side-by-Side Comparison
| Mouse name | Logitech G703 | Logitech G502 |
|---|---|---|
| Picture |  read reviewCheck Price on Amazon |  read reviewCheck Price on Amazon |
| Length | 12.4cm | 13.2cm |
| Width | 6.8cm | 7.5cm |
| Height | 4.3cm | 4.0cm |
| Weight | 107.2 grams | 121g |
| Buttons | 2 Primary Buttons 1 Middle Scroll Button 1 DPI Button 2 Side buttons | Primary left and right click Middle click 2 side thumb buttons Scroll tilt left and right DPI up and down Sniper toggle button Profile switch button |
| Sensor | Pixart PMW3366 | Pixart PMW3360 |
| Shape | Ergonomic | Ergonomic |
| Cable/Wireless | Wireless | Braided |
| Battery Life | 30 hours | N/A |
| Software | Logitech Gaming Software: Surface tuning RGB lighting settings DPI stepping Saved profiles on the mouse Button remapping Input analysis Macro recording | Logitech Gaming Software: Surface tuning RGB lighting settings DPI stepping Saved profiles on the mouse Button remapping Input analysis Macro recording |
| Warranty | 2 year warranty | 2 year warranty |
| Pros | Comfortable shape for big hands Reasonable weight for the size Solid clicks and feel | Lots of buttons to use for mapping in games Great infinite scroll Solid shape |
| Cons | Size is not suited for a lot of hand sizes | Heavy Cable is still on the stiff side |