The Honor 400 is a mid-range phone built around a 200MP stabilised camera and a bright AMOLED screen, two specs that normally live a price tier higher. It has since been succeeded by the Honor 600, which repositions it as the value pick in Honor's number series rather than the current lead model.
Honor 400: Display
The 6.55-inch AMOLED runs at 120Hz with a 1264 x 2736 resolution, and GSMArena measured 1,550 nits of maximum brightness in its lab test, strong for the money. The quoted 5,000-nit peak applies to HDR highlights, and 3840Hz PWM dimming should suit flicker-sensitive users.
Protection is quoted as Mohs level 4 hardness with no branded toughened glass, so a screen protector is a sensible add-on.
Honor 400: Camera
The 200MP f/1.9 main camera has OIS and sits alongside a 12MP autofocus ultrawide, with a 50MP selfie camera; all shoot 4K video. Binned shots from the big main sensor should deliver detail well above the class average in daylight.
There is no telephoto lens, so zoom relies on sensor crops, and low-light results will depend heavily on processing rather than hardware.
Honor 400: Battery
UK and European units carry a 5,300mAh silicon-carbon battery with 66W charging, quoted at 100% in 46 minutes; other markets get a 6,000mAh cell with 80W. GSMArena's lab returned an active use score of 12:29 hours.
That endurance is respectable rather than special: the newer Honor 600 recorded 16:58 hours in the same test, a gap heavy users will notice daily.
Honor 400: Size, Weight and Build
At 156.5 x 74.6 x 7.3mm and 184g, the Honor 400 is one of the lighter and slimmer phones in its class, in Midnight Black, Meteor Silver, Desert Gold and Tidal Blue.
The frame and back are plastic, and water resistance is IP65/IP66 against jets rather than immersion, both a step behind the glass-and-aluminium, IP68-rated Honor 600.
Honor 400: Performance
The Snapdragon 7 Gen 3 with up to 12GB of RAM keeps MagicOS moving well enough for everyday use, and Honor commits to up to six major Android upgrades from Android 15, a window with years left to run.
This is now a two-generation-old mid-tier chip, so demanding games will need settings turned down, and the USB-C port runs at USB 2.0 speeds.
Honor 400: Who Should Buy
Buy the Honor 400 if you want the strongest camera hardware available at true mid-range money and can live with plastic construction; it suits photography-first buyers on a budget, particularly at post-launch prices. If battery endurance or build quality lead your list, the newer Honor 600 is worth the extra outlay. Buyers weighing that choice on monthly cost will find current network pricing for this phone in the table above.