Logitech G403 Vs G703: Differences (Comparison & Review)

Logitech G703 LIGHTSPEED & HERO vs. Logitech G403 HERO – let’s review the main differences and decide which mouse is better for gaming. Keep reading to find out how these two compare in their optical sensors, DPI, weight, design, connectivity, and price. 

G703 vs G403: Quick Comparison

  • Wireless and Wired
  • Mechanical Mouse Switches
  • 12,000 DPI & 400 IPS
  • 6 Customizable buttons
  • Weight - 107g (3.8oz)
  • Quite expensive
Check Price
  • Wired
  • Mechanical Mouse Switches
  • 16,000DPI & 400IPS
  • 6 Customizable Buttons
  • Weight - 87g (3.1oz)
  • Cheaper
Check Price

Logitech LIGHTSPEED & HERO G703 vs G403: Differences


The mighty Logitech G703 LIGHTSPEED features up to 12,000 DPI and 400 IPS whereas there’s another version, Logitech G703 LIGHTSPEED HERO features true 16,000DPI with a max speed of 400IPS.

Furthermore, G703 LIGHTSPEED can provide a smooth gaming experience and quick response time which is also a great selling point. 

On the contrary, we have the Logitech G403 HERO which features up to 16,000DPI and a max speed of 400IPS.

Logitech G403 features a HERO optical sensor which makes this mouse, by far one of the best performing gaming mice.

Amazing accuracy and precision is another factor that contributes to the success of this mouse.

Optical Sensors

Logitech G703 LIGHTSPEED features the most iconic optical sensor known as PMW3366.

This flawless optical sensor is among the best optical sensors ever made. This optical sensor can provide some solid gaming experience without any intrusion of smoothing and lag. 

On the other hand, we have the renown Logitech G403 HERO which features the true 16K HERO optical sensor that is considered as the best optical sensor ever made by Logitech.

The accuracy, precision and tracking accuracy of this sensor is through the roof and this factor alone makes G403 HERO as one of the best gaming mice out there. 


There’s not much of a difference between the design of Logitech G703 and G403 HERO because their design is pretty much the same.

Both of these gaming mice feature a classic matt black shape with 6 customizable buttons and all of them are ideally placed on these mice.

The top of the mouse looks very clean with two mechanical switches that last for more than 50M clicks along with a nice looking scroll button and another button to change the DPI.

On the left side, there are 2 additional buttons which you could use as well. All the buttons are completely customizable using Logitech G HUB.

The design of these mice is ideal for everyone and when they’re compared with Razer DeathAdder V2, Hyper X Pulsefire Raid, and Redragon M602, the G703 and G403 appear to be the most user-friendly.


The Logitech G703 LIGHTSPEED is almost 12.4cm (4.9’’) long, 7.1cm (2.8’’) wide and 4.3cm (1.7’’) tall.

Weighing at 107g (3.8oz), The Logitech G703 LIGHTSPEED falls in the category of mid-range mice.

For some gamers, anything beyond 100g is ideal for them and in this case, G703 is definitely the one to look at.

However, the trend is changing now and some gamers are going for light-headed mice because they feel that they can play better with light-headed mice.

Logitech G403 HERO is also almost 12.4cm (4.9’’) long, 7.1cm (2.8’’) wide and 4.3cm (1.7’’) tall.

However, this time around, Logitech G403 HERO weighs at only 87g (3.1oz) which makes G403 as one of the most light-headed mice ever made.

Moreover, both these mice come with additional weight which can be attached at the bottom of the mice to increase the weight for better surface grip.


The Logitech G703 LIGHTSPEED is a wireless mouse with an amazing response rate of 1ms and absolutely no delays or signal drops.

The G703 can last for up to 24hours with normal lightings and almost 32 hours with no lights. Logitech G703 is supported by POWERPLAY wireless solution which means that you can wirelessly charge the mouse but you’ll have to pay to get the POWERPLAY wireless gaming pad.

Logitech G403 HERO is a wired gaming mouse and if you’re old school then I suppose you will enjoy a wired mouse more than a wireless gaming mouse.


The Logitech G703 LIGHTSPEED mouse is quite a bit more expensive than Logitech G403 HERO.

If you want a wireless charging pad with Logitech G703 LIGHTSPEED then you will have to pay for additional charges as well.

If you really want a wireless gaming mouse then go for Logitech G703 LIGHTSPEED but if you’re into wired gaming mice then Logitech G403 HERO is a better budget-friendly option

The Logitech G703 LIGHTSPEED and Logitech G403 HERO are both readily available on Amazon.

Logitech G703 LIGHTSPEED Review

The Logitech G703 LIGHTSPEED is an excellent mouse and quite durable as well.

It can pull some long hours and definitely worth your money.

Equipped with LIGHTSPEED technology, the G703 is truly an exceptional mouse and ideal for gaming.

As mentioned earlier, Logitech G703 LIGHTSPEED is equipped with PMW3366 which is among the best optical sensor and can really provide good gaming experience.

If you’re looking for something simple yet deadly gaming mouse then this mouse will definitely meet your expectations.

Check Current Price

Logitech G403 HERO Review

The Logitech G403 HERO is equipped with the state of the art HERO optical sensor which means that there’s no doubt in the excellent performance of this mouse.

Very much like G703, the Logitech G403 HERO is a very flexible and durable mouse and if you’re looking for a long-term gaming mouse then G403 HERO is not a bad option either.

The specs are pretty good when compared with other mid-range mice so I’ll definitely recommend this to a friend.

Check Current Price

difference G403 G703


G403 vs G703: And the winner is…

Logitech doesn’t ever disappoint the gaming community because they always launch amazing devices that leave us in awe.

The Logitech G703 LIGHTSPEED and G403 HERO are truly an exceptional mouse and both of them pack some great specs but I feel like G403 HERO provides more in less money whereas G703 LIGHTSPEED charges a lot more for a similar thing.

However, if you’re looking for a wired mouse then G403 is an absolute beast and if you want a wireless mouse and don’t mind to pay a bit more then G703 won’t disappoint either.