Honor 400 Smart review
The Honor 400 Smart suits someone who values battery endurance, a large screen, and a headphone jack enough to tolerate a grainy 720p display and slow charging. Anyone shopping for a sharp display, quick-charging speed, or performance headroom at this price should look at more recent alternatives that do not concede screen resolution to achieve battery capacity.
This review is based on Honor’s published specifications and public benchmark data for the Honor 400 Smart, and the rating is spec-based. GoSolo does not physically test devices; where we estimate real-world behaviour such as battery life or charge time, we say so. How we rate phones.
Overview
The Honor 400 Smart is a large-screen budget phone with solid battery life and a 50MP camera, but the 720p display on a 6.77-inch panel is grainy and the mid-range chip struggles with demanding apps. It's a sensible choice for basic tasks and heavy media consumption if you value the 3.5mm jack and price, but not a genuine step forward in value for 2025.
Design & build
At 189 grams and 8.4 mm thick, the 400 Smart feels slim and reasonably light for its screen size. The body is plastic rather than glass or metal, which is standard at this price, though it does cheapen the feel compared to some rivals. IP64 rating handles dust and splashes but not submersion—fine for typical drops in rain or poolside carelessness. The real weak spot is the Mohs level 4 scratch protection on the screen; it's softer than the Gorilla Glass or equivalent coatings rivals offer at similar prices, meaning you'll see fine scratches from pocket keys or sand sooner. The side-mounted fingerprint sensor is fast and reliable for this class.
Display
The 6.77-inch TFT LCD panel is bright enough in sunlight at 700 nits peak brightness and the 120Hz refresh makes scrolling feel fluid. But here is where the phone's value proposition stumbles: 720p resolution on such a large screen produces visible pixelation, especially in text, email, and web content. At 261 ppi, it's a noticeable step below what budget phones have adopted in 2024 and 2025—rivals at this price often hit 1080p on similar-size panels, making them sharper to the naked eye. The TFT technology itself is fine for colors and blacks are acceptable, though not as deep or vibrant as AMOLED. This is a phone for users who prioritize screen real estate over crispness; word-heavy tasks will feel less polished than on a sharper display.
Performance
The Snapdragon 6s Gen 3 is a refresh of last year's 6s Gen 1 with minimal clock speed gains—both sit in the same performance band for everyday apps, messaging, social media, and light video playback. It handles multitasking without stuttering and basic games run smoothly. However, demanding titles need graphics turned down, and some productivity apps that rely on heavy processing will lag noticeably. There is no performance jump here; if you own a budget phone from 2024 with the 6s Gen 1, this does not justify an upgrade. The Adreno 619 GPU is adequate but not competitive with chips in the tier above. RAM options go up to 8GB, which helps smooth things along, but it does not compensate for the chipset ceiling.
Software
Android 15 with Magic OS 9 ships out of the box. Magic OS is Honor's overlay, and it tends to be light and non-intrusive compared to EMUI or ColorOS from other Chinese vendors. Updates and support will depend on regional availability and Honor's commitment, which varies by market. The OS itself is clean and responsive for the hardware it runs on. Do not expect cutting-edge AI features; this chip and RAM are not built for demanding on-device processing.
Camera
The 50MP main shooter with f/1.8 aperture and PDAF performs well for this class. Daylight shots are sharp and natural-looking without over-processing, and the fast aperture helps in low-light scenes better than smaller f/2.2 rivals. HDR works decently, reducing blown highlights in mixed lighting. The weakness is the 5MP selfie camera, which is bare-bones and produces soft, muddy results—fine for video calls but mediocre for portraits or social posts. Video tops out at 1080p@30fps, no 4K; that is a limitation now that mid-range phones have moved to 4K as standard. Photo quality is respectable for stills, but the lack of 4K video and any zoom camera (only the main wide lens) puts it behind rivals offering ultrawide or 2x telephoto in the same band.
Battery & charging
The 6500 mAh battery is the phone's strongest asset. Light users (basic calling, messaging, light browsing) see about 1.5 days between charges; moderate users averaging 4–6 hours of screen-on time can stretch to a full day. Heavy users—video streaming, gaming, constant navigation—will need daily charging. This compares favorably to rivals cramming 5000 mAh into smaller frames, though not exceptional by raw size. The 35W charging speed is the weak point. Full charge from empty takes about 50–70 minutes, but the last 20 percent crawls down. In 2025, competitors at this price have normalized 65W to 100W, making this feel slow; if you need a quick top-up during the day, a 30-minute charge here will give you less than you'd get on a faster rival in the same time.
Value & verdict-context
The 400 Smart occupies an awkward middle ground. It prioritizes battery capacity and screen size—assets for media watchers and occasional users—but compromises on resolution sharpness and charging speed relative to what the market offers at similar prices in mid-2025. The 3.5mm jack and stereo speakers are genuine differentiators that appeal to audio purists or office workers who value a headset. The 50MP camera is adequate but not ahead of rivals. On specs alone, competitors offer better resolution displays, faster charging, and modestly better chipsets for comparable money. Choose this phone if battery longevity and having a 3.5mm jack matter more to you than screen crispness or charging convenience, or if you intend to use it mainly for video and reading at arm's length where pixel density matters less.
Verdict
The Honor 400 Smart suits someone who values battery endurance, a large screen, and a headphone jack enough to tolerate a grainy 720p display and slow charging. Anyone shopping for a sharp display, quick-charging speed, or performance headroom at this price should look at more recent alternatives that do not concede screen resolution to achieve battery capacity.
- 6500 mAh battery delivers 1.5 days of light use and about 9–11 hours of active screen time on moderate work, handling a full day for non-power users
- 3.5mm headphone jack and stereo speakers remain, a rarity now that most budget rivals have dropped them
- 50MP main camera with f/1.8 aperture and PDAF handles daylight and low light respectably, and the wide angle is natural for everyday shots
- 5G and Wi-Fi 6 connectivity at this price point, useful for areas rolling out next-gen networks
- 720p resolution on a 6.77-inch screen yields visible pixelation, especially in text—text rendering is noticeably grainy compared to rivals that have moved to 1080p at this size
- 35W charging takes about an hour, but mid-range competitors now push 65W to 100W, making this feel slow by current standards
- Snapdragon 6s Gen 3 is competent for light work but will throttle on demanding apps and games; no real upgrade in performance over last year's 6s Gen 1 models
Honor 400 Smart Key Specifications
The essentials at a glance. See the full spec sheet.
| Released | 2025, August 07 |
|---|---|
| Display | 6.77 inches, 110.2 cm2 (~86.0% screen-to-body ratio), TFT LCD, 120Hz, 700 nits (peak) |
| Resolution | 720 x 1610 pixels, 20:9 ratio (~261 ppi density) |
| Chipset | Qualcomm SM6375 Snapdragon 6s Gen 3 (6 nm) |
| RAM & storage | 128GB 4GB RAM, 128GB 6GB RAM, 256GB 4GB RAM, 256GB 6GB RAM, 256GB 8GB RAM |
| Main camera | 50 MP, f/1.8, (wide), PDAF Auxiliary lens |
| Selfie camera | 5 MP, f/2.2, (wide) |
| Battery | 6500 mAh |
| Charging | 35W wired |
| Software | Android 15, Magic OS 9 |
| Dimensions | 166.9 x 76.8 x 8.4 mm (6.57 x 3.02 x 0.33 in) |
| Weight | 189 g (6.67 oz) |
| Durability | IP64 dust tight and water resistant (water splashes) |
| Network | GSM / HSPA / LTE / 5G |
| NFC | Yes |
| USB | USB Type-C 2.0, OTG |
Honor 400 Smart FAQ
Common questions, answered from the spec sheet.
Does the 400 Smart support 5G?
Yes. The 400 Smart supports 5G networks.
What chipset does the 400 Smart use?
The 400 Smart runs on the Qualcomm SM6375 Snapdragon 6s Gen 3 (6 nm).
What display does the 400 Smart have?
A 6.77 inches, 110.2 cm2 (~86.0% screen-to-body ratio) TFT LCD, 120Hz, 700 nits (peak), 720 x 1610 pixels, 20:9 ratio (~261 ppi density).
How big is the 400 Smart battery?
The 400 Smart has a 6500 mAh battery. Charging is rated at 35W wired.
Does the 400 Smart have NFC?
Yes, the 400 Smart has NFC.
Is the 400 Smart water resistant?
The 400 Smart carries a IP64 dust tight and water resistant (water splashes) rating.
Does the 400 Smart support a microSD card?
No, the 400 Smart does not support expandable storage.
Does the 400 Smart have a headphone jack?
Yes, the 400 Smart has a 3.5mm headphone jack.
Alternatives to consider
If the 400 Smart isn’t quite right, these are the closest calls.
400 Smart 5G
400 Smart 4G
Play10
X7d 5G
Galaxy M17e
