Vivo Y400

Display6.67" 1080 x 2400 pixels
ChipsetQualcomm SM4450 Snapdragon 4 Gen 2 (4 nm)
Main camera50MP
Battery6000 mAh
Y400 product photo
6.6GoSolo score
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Network

Technology
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 800 / 850 / 900 / 2100
4G bands
1, 3, 4, 5, 8, 18, 19, 26, 28, 38, 40, 41, 42, 48
5G bands
1, 3, 5, 8, 28, 40, 77, 78 SA/NSA
Speed
HSPA, LTE, 5G

Launch

Announced
2025, August 04
Status
Available

Body

Dimensions
162.3 x 75.3 x 7.9 mm (6.39 x 2.96 x 0.31 in)
Weight
197 g (6.95 oz)
Build
Glass front, plastic back, plastic frame
SIM
Nano-SIM + Nano-SIM
Durability
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 2m for 30 min) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions

Display

Type
AMOLED, 120Hz, 1200 nits (HBM), 1800 nits (peak)
Size
6.67 inches, 107.4 cm2 (~87.9% screen-to-body ratio)
Resolution
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)

Platform

OS
Android 15, Funtouch 15
Chipset
Qualcomm SM4450 Snapdragon 4 Gen 2 (4 nm)
CPU
Octa-core (2x2.2 GHz Cortex-A78 & 6x1.95 GHz Cortex-A55)
GPU
Adreno 613

Memory

Card slot
Unspecified
Internal
128GB 8GB RAM, 256GB 8GB RAM
Type
UFS 3.1

Main Camera

Modules
50 MP, f/1.8, (wide), 1/2.96", PDAF Auxiliary lens
Features
Ring-LED flash, panorama, HDR
Video
1080p@30fps

Selfie Camera

Module
32 MP, f/2.5, (wide)
Features
1080p@30fps

Sound

Loudspeaker
Yes, with stereo speakers
3.5mm jack
No

Comms

WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
5.0, A2DP, LE
Positioning
GPS, GLONASS, GALILEO, BDS, QZSS
NFC
No
Radio
No
USB
USB Type-C 2.0, OTG

Features

Sensors
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass

Battery

Type
Li-Ion 6000 mAh
Charging
90W wired, 50% in 20 minReverse wiredBypass Charging

Misc

Colors
Glam White, Olive Green
SAR
0.99 W/kg (head) 0.80 W/kg (body)
GoSolo Read / what it means7 takeaways
display
120Hz AMOLED, 1800 nits peakThe 1200-nit brightness (high brightness mode) and 120Hz refresh make the 6.67-inch screen readable in sunlight and smooth when scrolling through apps or social feeds.
battery
6000 mAh, about 1 day heavy useScreen-on time runs roughly 14 to 16 hours in light use, or about 9 to 11 hours if you are gaming, streaming, or using 5G constantly.
charging
90W wired, 50% in 20 minutesReaching full charge from zero takes roughly 30 to 40 minutes if you use a high-power charger, so you can top up before leaving the house.
performance
Snapdragon 4 Gen 2, light gamingThe Adreno 613 GPU handles PUBG Mobile and Genshin Impact on low settings, or casual games like Candy Crush at full detail, but not sustained high-refresh AAA titles.
camera
50MP f/1.8 main, no zoomThe large f/1.8 aperture and 1/2.96 inch sensor capture sharp daytime shots and decent low-light photos, but you cannot magnify distant subjects without pixel loss.
durability
IP68, MIL-STD-810H certifiedSurvive immersion in 2 meters of water for 30 minutes and dust ingress; the phone meets military drop and vibration tests, so accidental soaking or pocket dust is not a worry.
connectivity
5G, Wi-Fi 6, dual-bandThe modem supports 5G networks in your region (if available) and 802.11ac Wi-Fi, so you get fast downloads on both cellular and home networks.
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