Looking at the comparison features, G403 and G703 are near identical. But the wired G403 is lighter by 8 grams. If you prefer super-light mice, it is the kind you pick to perform flick shots when playing FPS. But you will find that there’s a bit of friction from the thick braided cable.

Apart from being wireless, G703 supports PowerPlay wireless charging. It allows you to cut the cord altogether. The PowerPlay mat comes in a soft and hard option. You can personalize the surface to match your preference.

Note that when you insert the 10g weight to make the G703 heavier, you won’t be able to utilize PowerPlay charging. This is because the weight module goes into the same slot as the PowerPlay chip.

G403 vs G703 Comparison Review

Shape and Size

Logitech G403 and G703 are all about precision gameplay. The design is ergonomic, right-handed. At 12.4cm long, the mouse is a comfortable length for medium to large-sized hands. But it is wider and there’s a slight hump towards the back.

The hump and the wide-body make it uncomfortable for palm grip players who have large hands. It’s similar to the Zowie EC1-A at 6cm at the fingers. But the extra 0.8cm makes all the difference in this mouse. That’s why claw and fingertip players find it more comfortable and easier to get used to than palm grip users.

G403/G703 is nice and simple. It has a sturdy, matte black plastic shell. We like that it handles perspiration quite well and you won’t experience slippage in long hours of gaming.

At 87g, the G403 is one of the lightest gaming mice on the market. It is only 7 grams heavier than the G Pro wireless and 4g heavier than G Pro wired. It’s no wonder G Pro wireless is more expensive than even the G703 because it has slashed the weight extremely.

The sides of the G403/G703 taper on the sides. It makes it easier to rest the thumb, index and middle fingers. There is a wide slope on the left side to accommodate the ring and pinky fingers. Because of the wide grove, lefties can't use it even if you are not interested in using the side buttons.

Lastly on the shape is that the side grips are rubberized. Logitech has used soft rubber and not the usual grip pads. It makes it easy to plant the hand without straining the fingers.

Buttons and Scroll Wheel

G403/G703 comes with six programmable buttons. But you can’t swap them out to customize their positions. We do, however, like that the buttons use the metal-spring tensioning system. This mechanism is fundamental. It ensures that you get the tactile response for low actuation. It is especially important in mouse 1 and mouse 2 buttons.

The side buttons also have a delightful response on them. They are just as tactile and you won’t feel much difference between them and mouse 1 and 2 buttons. The DPI switch sits behind the scroll wheel. Some of us feel this mouse is kinda expensive to sport only one DPI button. Two DPI switches would have made it easier to toggle between the five DPI settings.

For those who like to play with different sensitivities, an on-the-fly switch is desirable. But if you are prone to changing the DPI accidentally, it’s possible to disable it. Or rather, you can opt for G Pro wireless which has the DPI button on the bottom of the mouse.

You get a clicky rubber scroll wheel. The steps have a defined outline so you can scroll without issues. It also registers clicks without delay.

Sensor

After Lightspeed wireless technology, the next hyped-up feature on Logitech new generation mice is the Hero 16K sensor. It is considered to improve tracking and solve the short battery life on wireless models. The sensor has also dealt with spinning out. It is common on previous generation sensors like the PMW3310.

The sensor boasts reliable 400IPS speeds and a 1ms report rate. It does not jitter when zooming in on enemies. It is also not hard to handle long-distance taps in CSGO. It proves to be reliable and functional.

What’s more, you can optimize the sensor to your surface on the G Hub software. You can set the accuracy to match a soft or hard mouse pad. Even if you don’t calibrate the sensor to your mouse pad, it adapts to the type of the surface. This means you can game on an uneven surface. And it won’t suffer jitter caused by the sensor deviating from the surface.

Wireless Performance and Battery Life

For a long time, gamers tended to shy away from wireless mice. But Logitech Lightspeed technology is changing the way we view wireless mice. Lightspeed wireless technology can deliver low-latency.

The G703 comes with a nano receiver. It operates wirelessly over a 2.4GHz connection. It is arguably faster than some wired mice. It offers a stable connection that most wireless mice lack. Because of this, lightspeed wireless technology has become a pro-grade solution on the tournament scene.

Logitech has proved that the technology allows the sensor to process data faster while drawing low amounts of energy. Which brings us to the battery life on the G703.

In the G703 with a PMW3366 sensor, the battery life is barely 24 hours when RGB is turned on and 32 hours without RGB. With the new Hero 16k sensor, you can enjoy 35 hours with RGB and 60 hours without RGB. As they say, it is changing every limit we believed about sensor technology.

Cable

G403 comes with a cable that’s around 7ft long. It is braided to improve durability. But this comes with drag as it loses some flexibility. We noticed that because of its thickness it doesn’t fit in most bungees like Razer’s. With a little effort, it can through the Zowie Camade to eliminate drag.

Software

Logitech G Hub gives you a platform to make the mouse feel truly yours. It works with Windows and Mac. It allows you to create game profiles, sync, and control lighting, and optimize all your Logitech gear. The software is sophisticated, but the interface is intuitive. It has a drag-and-drop UI where you can assign macros and create key bindings with the least input.

We particularly like the RGB lighting on Logitech mice. You can select colors to match the game’s audio and action. It’s a cool feature though it won’t improve gaming in any way. Your gear will just look cool among friends.

Which one to Choose- G403 or G703?

G403 and G703 are both very comfortable mice. They perform well across a wide range of games. The G403 may be wired, but with the Hero 16K sensor, it is perfectly competitive. It is also an affordable mouse compared to the wireless G703. The G703 is entirely a mouse for those who don’t mind the high-end Hero 16K sensor upgrade. And if you favor a wireless mouse, it doesn’t disappoint.

Conclusion

The differences between the G403 and G703 are subtle. But they can influence the choice you make. Remember it’s a choice between wired and wireless performance. Cheap and expensive, and even light over heavy. At this point, your personal preferences play a big role. After all, you can still overgo the Hero 16K sensor for the PMW3366. That is if you are on to a wireless affordable mouse like the G403 wireless.