HONOR 400 Smart 5G

HONOR 400 Smart 5G: the model at a glance

The HONOR 400 Smart 5G is an Android smartphone built around a large 6.77-inch TFT LCD, a Qualcomm Snapdragon 6s Gen 3 processor, 5G-capable cellular hardware and a dual rear-camera system. HONOR’s UK specification lists a 6500mAh typical-capacity battery, 35W wired HONOR SuperCharge and stereo speakers. Those details describe the manufacturer’s model family and regional reference. They do not confirm the exact RAM, storage, color, radio bands, package contents, warranty, price or stock attached to the single generic BiponiBD variant. Ask the seller to confirm the configuration printed on the actual box before ordering.

Display: large HD+ screen with a high refresh option

The panel measures 6.77 inches diagonally using the standard rectangular measurement; rounded corners make the viewable area slightly smaller. HONOR identifies it as a TFT LCD with a resolution of 720 × 1610 pixels. The screen therefore provides HD+ detail rather than Full HD or AMOLED contrast. HONOR’s official product overview advertises refresh rates up to 120Hz, which can make supported scrolling and animation look smoother than a 60Hz panel. Refresh behavior depends on the selected display setting, software, app and content, and higher refresh settings can affect battery use.

HONOR lists 700 nits typical brightness and up to 850 nits in HBM on its UK specification page. HBM is a high-brightness mode under specific conditions and should not be presented as a constant brightness level. Eye Comfort and Dynamic Dimming options are listed; they are display features, not medical treatments. The official EU product sheet rates screen scratch resistance at Mohs level 4. That rating does not mean the glass cannot scratch, crack or break, so normal care and a compatible protective case remain sensible.

Processor, memory and storage choices

The Snapdragon 6s Gen 3 platform is specified as a 6nm octa-core chip. HONOR lists two Cortex-A78 cores up to 2.3GHz and six Cortex-A55 cores up to 2.0GHz, paired with an Adreno 619-class GPU. This is a mid-range platform intended for common phone tasks, streaming, navigation, social apps and casual games. Actual speed depends on the app, network, available memory, software version and heat. A chipset name alone does not guarantee a particular game frame rate or sustained performance.

Regional HONOR pages list a 4GB physical-RAM configuration with either 128GB or 256GB of internal storage. HONOR also describes RAM Turbo as a 4GB + 4GB memory experience. Storage-backed expansion is virtual memory; it is not extra physical RAM and may use internal storage. The available space is lower than the advertised storage capacity because the operating system and pre-installed software occupy part of it. The current BiponiBD catalog has one generic variant and does not identify which RAM/storage configuration is actually in stock. Confirm the package label and the device’s Settings screen before selecting or dispatching a configuration. Do not treat the 128GB and 256GB options as selectable BiponiBD variants until inventory records confirm them.

Rear and front cameras

HONOR’s official specification lists a 50MP main rear camera with an f/1.8 aperture and a 2MP depth camera with an f/2.4 aperture. A single rear LED flash is specified. Supported camera modes include portrait, time-lapse, night, video, slow motion, high resolution, panorama, Pro and photo; availability and processing can vary with software. The additional 2MP sensor is a depth camera, not an ultrawide lens, and the megapixel count by itself does not describe low-light quality or final image detail.

The front camera is listed at 5MP with an f/2.2 aperture. HONOR specifies video capture up to 1920 × 1080 pixels for the listed camera pages. The actual resolution, frame rate and output can vary by mode, so verify the desired mode on the unit if it matters for calls or content creation. Product photographs and specification tables should not promise features beyond those listed by HONOR for the relevant regional model.

Battery, charging and audio

The dual-cell battery is listed as 6500mAh typical capacity and 6350mAh rated capacity in HONOR’s UK model data and EU product sheet. Typical and rated figures are different measures, not conflicting battery sizes. HONOR specifies wired charging up to 35W with a compatible 35W HONOR charger and cable. Charging power can vary with temperature, battery state, cable, adapter and the phone’s own charging controls. A fast-charge number does not establish how long the battery will last; usage, signal strength, display settings, apps and temperature all affect runtime.

HONOR lists stereo speakers and HONOR Sound 7.3, along with a high-volume mode in product marketing. Supported playback formats and speaker loudness depend on content and settings. The official connection specification describes Type-C earphone audio rather than a 3.5mm analogue socket. Buyers with wired headphones should use compatible USB-C audio or Bluetooth and confirm adapter support before purchase.

Build, protection and everyday handling

The official HONOR UK specification gives dimensions of 166.89 × 76.8 × 8.24mm and a weight of 206g, with a note that actual dimensions and weight may vary by configuration, manufacturing process and measurement method. These figures differ from a Bangladesh retailer table that lists 189g, so the manufacturer’s regional specification is used here and the unit should be checked if weight is important. HONOR lists Meteor Silver and Velvet Black in the UK. Available colors vary by market, and the image already attached to the BiponiBD catalog does not establish which color is available.

Official HONOR regional sources do not give one identical rating: the UK/EU LGN-NX1 specification pages list IP54, while HONOR LATAM lists IP65 for its regional 5G product. This BiponiBD record does not identify the unit’s market version, so its exact rating must be checked against the delivered box or regional HONOR documentation. Neither rating makes a phone waterproof or safe for submersion. Protection can decrease with wear or damage. Keep it away from pools, sinks and heavy water exposure. The catalog previously stated IP64 based on a retailer table; that is not a sufficient basis for this unit’s rating.

Network, connectivity and software

HONOR lists GSM, WCDMA, 4G LTE and 5G NR network standards for this model. Two Nano-SIM cards are listed on the UK page. The network bands and SIM behavior can differ by region, so the model name alone cannot establish compatibility with every Bangladesh carrier. Ask for the precise model identifier and band list for the delivered unit if 5G coverage or dual-SIM use is essential.

HONOR’s regional product page also describes a physical Instant AI Button for shortcuts and smart recommendations; exact software actions depend on region and updates. Connectivity features listed by HONOR include dual-band 2.4GHz and 5GHz Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, Bluetooth with BLE, NFC, USB Type-C 2.0, USB OTG and positioning through GPS, GLONASS, Galileo and BeiDou. HONOR’s page does not state a Bluetooth version in the specification reviewed, so this listing does not invent one. NFC support can vary by regional configuration and local service. Sensors include a gravity/acceleration sensor, compass, ambient-light sensor, proximity sensor and fingerprint sensor. The fingerprint reader is side-mounted.

The model launched with Android 15 and MagicOS 9.0. A phone may receive software updates after launch, and the currently installed version, security patch and available functions depend on region and update history. Check Settings after delivery if a particular version or update period is important. The manufacturer’s European product documentation lists a five-year minimum update period for the LGN-NX1 EU product, but that regional commitment is not presented here as a Bangladesh promise for this unit.

Correct identity, variants and warranty checks

HONOR’s EU product information sheet identifies the model as LGN-NX1. This is the manufacturer’s model identifier for the reviewed regional model family. A retailer product code is not an HONOR part number and does not establish a BiponiBD price or stock offer. Check the actual delivered box or device settings to confirm that its model identifier matches this listing.

The catalog record does not prove which storage option or color is attached to its single generic variant. It also does not contain the device IMEI or serial number needed to check warranty eligibility. HONOR Bangladesh provides a warranty query by IMEI or serial number; ask BiponiBD for written coverage and verify the actual device before relying on an official warranty claim. The previous one-year warranty and sealed-package wording has been removed because the physical unit’s origin, seal, invoice and warranty status were not established in this review.

HONOR UK’s in-box list mentions the phone, quick guide, USB Type-C cable, eject pin, warranty card and pre-applied protective film; it does not establish the exact BiponiBD batch or confirm a wall adapter. The available BiponiBD price, warehouse quantity, delivery availability, regional network bands, unit color and manufacturer warranty remain unverified. The competitor page showed its own “Upcoming / To be announced” status; it is not a BiponiBD offer. Confirm the actual configuration, price, stock, condition and written warranty with BiponiBD before checkout. This guide intentionally distinguishes manufacturer model specifications from claims that need a physical-unit or seller record.