This G403 HERO review is about a wired gaming mouse that has gone through a few sensor generations to reach the current version, equipped with the HERO 25K. It occupies the mid-range of Logitech’s catalog, between the entry-level models and the premium wireless mice.
It’s recommended for those who want a reliable gaming mouse, with a top-tier sensor and without the extra battery worries, since it works exclusively wired. The verdict, up front: the G403 HERO delivers a sensor equivalent to that of much more expensive mice at a quite competitive price.
G403 HERO Specifications
- Sensor: HERO 25K, optical
- DPI: adjustable from 100 to 25,600
- Weight: 87 g, with an optional removable 10 g weight
- Shape: ergonomic, with rubberized sides, aimed at right-handers
- Connection: wired, braided USB cable
- Polling rate: 1,000 Hz (1 ms)
- Buttons: 6 programmable
- Lighting: RGB LIGHTSYNC, about 16.8 million colors
- Approximate price: between R$190 and R$300 in Brazil
Design and Build
The G403 HERO follows an ergonomic shape aimed at right-handers, with curves that follow the palm of the hand and rubberized sides to improve grip firmness. It’s not an ambidextrous mouse, and the side buttons are positioned only for the right thumb.
The braided nylon cable is a differentiator compared to entry-level mice, offering more resistance to twisting over time. The optional 10 g weight, fitted into the base of the mouse, allows adjusting the center of gravity according to the player’s preference.
The RGB LIGHTSYNC lighting covers the logo and the base of the mouse, with effects syncable with other Logitech G peripherals. The plastic finish is solid, with no perceptible gaps even after intense use.
Performance: Does the HERO 25K Sensor Make Up for the Lower Price?
This is the main selling point of the G403 HERO gaming mouse. The HERO 25K sensor tracks with 1:1 precision across the entire 100 to 25,600 DPI range, without smoothing, filtering, or acceleration — the same sensor found in the brand’s more expensive models.
In practice, FPS players in games like CS2 and Valorant tend to use sensitivities well below the maximum, generally between 800 and 3,200 DPI, a range in which the G403 HERO behaves consistently and without perceptible jitter. The 1,000 Hz polling rate ensures a 1 ms response, suitable for both competitive and casual gaming.
The quick DPI switch feature, accessible via a dedicated button, allows changing sensitivity in real time, useful in games with large maps like MOBAs, where you need to alternate between precision and movement speed.
Software and Extra Features
Configuration is done through Logitech G HUB, with support for:
- Adjustment of up to 5 DPI levels, with quick switching (DPI shift) during the game
- Programming of the 6 buttons with macros and custom actions
- Customization of the RGB LIGHTSYNC lighting, synced with other G peripherals
- Game-specific profiles, activated automatically
Unlike the line’s wireless models, the G403 HERO doesn’t have significant onboard memory for profiles, relying on G HUB running in the background to apply the saved settings.
Pros and Cons
Pros
- High-precision HERO 25K sensor, equivalent to premium models
- Durable braided cable
- Adjustable weight with removable 10 g counterweight
- Customizable RGB LIGHTSYNC lighting
- Affordable price for the sensor offered
Cons
- Right-handers only, no ambidextrous option
- No wireless version in this price range
- Relies on G HUB being open to apply saved profiles
- Design has been the same for several generations, without major aesthetic novelties
Quick Comparison
Against the cheaper Logitech G203, the G403 HERO wins on sensor precision and build, since the G203 uses a less advanced sensor. Compared to the G Pro (wired, similar sensor), the G403 HERO has a more ergonomic shape, while the G Pro bets on a more neutral symmetrical design.
Who It’s Worth It For
The G403 HERO is recommended for right-handed players looking for a wired gaming mouse, a high-precision sensor, and good value, without having to worry about battery life. It’s not the ideal choice for left-handers or for those who’ve already decided to migrate to wireless mice.
Conclusion and Final Score
The G403 HERO review confirms that this wired gaming mouse remains a solid option in 2026, especially because of the HERO 25K sensor, rarely found in this price range. The limitations come down to the right-hander-only shape and the absence of a wireless version, but for those who don’t mind the cable, the value is one of the best in Logitech’s catalog.
Score: 8/10
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