Compare vivo Y400 4G vs vivo Y31 Pro

vivo Y400 4G
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vivo Y31 Pro
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  vivo Y400 4G vivo Y31 Pro
Launch
Version July 2025 September 2025
Network
Technology 4G 5G
Body
Dimensions 162.3 x 75.3 x 7.9 mm (6.39 x 2.96 x 0.31 in) 165.7 x 76.3 x 8.1 mm (6.52 x 3.00 x 0.32 in)
Weight 196 g or 198 g 204 g or 208 g
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Design Glass front, plastic back, plastic frame
Others IP68/IP69 dust tight and water resistant IP64 dust tight and water resistant
Display
Type AMOLED, 120Hz IPS LCD, 120Hz
Size 6.67 inches 6.72 inches
Resolution 1080 x 2400 pixels 1080 x 2408 pixels
Protection
Various
Platform
Operating System Android 15, Funtouch 15 Android 15, Funtouch 15
Chipset Qualcomm SM6225 Snapdragon 685 (6 nm) Mediatek Dimensity 7300 (4 nm)
CPU Octa-core (4x2.8 GHz Cortex-A73 & 4x1.9 GHz Cortex-A53) Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU Adreno 610 Mali-G615 MC2
Memory
Card Slot No No
Internal 128GB 8GB RAM, 256GB 8GB RAM 128GB 8GB RAM, 256GB 8GB RAM
Camera
Primary 50 MP, f/1.8, (wide) + 2 MP, f/2.4, (depth) 50 MP, f/1.8, (wide), + 2 MP, f/2.4, (depth)
Features Ring-LED flash, panorama, HDR Ring-LED flash, panorama
Video 1080p@30fps 4K@30fps, 1080p@30fps
Selfie 8 MP 1080p@30fps 8 MP 1080p@30fps
Sound
Loudspeaker Yes, with stereo speakers Yes, with stereo speakers
3.5mm Jack No No
Extra 24-bit/192kHz Hi-Res audio 24-bit/192kHz Hi-Res audio
Comms
Wifi a/b/g/n/ac, dual-band a/b/g/n/ac, dual-band
Bluetooth 5.0 5.4
GPS Yes Yes
NFC Yes No
Infrared Yes
Radio No No
USB USB Type-C 2.0 USB Type-C 2.0
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Miscellaneous
Battery
Battery type 6000 mAh 6500 mAh
Charging 44W wired, Reverse wired 44W wired (50% in 40 min), Reverse wired
Misc
Colors Purple Twilight, Tropical Green, Pearl White Dreamy White, Mocha Brown
Models
Inside the box
Price 220 USD 200 USD
vivo Y400 4G:
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vivo Y31 Pro:
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  vivo Y400 4G vivo Y31 Pro