If you look very closely at the button directly behind the scroll wheel, you can see two semi-circular arrows, one of which is smooth on both edges, whereas the other has teeth cut out. This button is used to allow the scroll wheel to be switched between what Logitech call Hyperfast or a typical feel scroll wheel; one function allows the wheel to spin completely freely, allowing multiple pages to be devoured from one scroll, the other changes the flow entirely, giving it an incredibly notched, and reasonably loud, feel.
The two triangular buttons behind that are for DPI control; Logitech have chosen to use a side-by-side setup instead of the typical above and below. This actually makes finding the correct button even easier than a regular design.
The underside of the mouse is quite a busy affair with a total of 6 PTFE glide pads to reduce friction as much as possible, an on/off switch, a profile toggle button and the PixArt PMW3366 Optical sensor. The sensor is partially protected against the ingress of dust and debris that inevitably gets onto your mousemat, but only on the outer flanks and not from above; a tiny bit more of the PTFE pad would’ve helped here.
The round section towards the bottom of the mouse is where the optional 10g weight can be stowed, or, if purchased, where the PowerPlay PowerCore will be housed at the expense of that weight customisation.
Logitech have used a typical Micro-USB interface to charge the mouse but have beefed up the connection slightly to prevent movement, sag or damage to the port over time.
The Logitech PowerPlay mousemat, which is sold separately with an MSRP of £110, provides constant and entirely wireless power to the G903, removing any need for charging cables or even the worry of having to charge the device at all. What’s more is that the USB block connected to the top-left also acts as the receiver for the G903 and G703, negating the need for two USB connections to the PC. We’ll cover more on the technology and performance of the mousemat in our next review.
The two triangular buttons behind that are for DPI control; Logitech have chosen to use a side-by-side setup instead of the typical above and below. This actually makes finding the correct button even easier than a regular design.
The underside of the mouse is quite a busy affair with a total of 6 PTFE glide pads to reduce friction as much as possible, an on/off switch, a profile toggle button and the PixArt PMW3366 Optical sensor. The sensor is partially protected against the ingress of dust and debris that inevitably gets onto your mousemat, but only on the outer flanks and not from above; a tiny bit more of the PTFE pad would’ve helped here.
The round section towards the bottom of the mouse is where the optional 10g weight can be stowed, or, if purchased, where the PowerPlay PowerCore will be housed at the expense of that weight customisation.
Logitech have used a typical Micro-USB interface to charge the mouse but have beefed up the connection slightly to prevent movement, sag or damage to the port over time.
The Logitech PowerPlay mousemat, which is sold separately with an MSRP of £110, provides constant and entirely wireless power to the G903, removing any need for charging cables or even the worry of having to charge the device at all. What’s more is that the USB block connected to the top-left also acts as the receiver for the G903 and G703, negating the need for two USB connections to the PC. We’ll cover more on the technology and performance of the mousemat in our next review.
