Xiaomi Redmi Note 15 vs Vivo Y31d

Key Specs
Display 6.77""
Battery 6000 mAh
Camera 108 MP + 2 MP
Storage 128GB Built-in
Network
Technology GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 38, 40, 41, 66
Speed HSPA, LTE
Launch
Announced 2025, December 18
Status Available Released 2026, March 25
Body
Dimensions 164 x 75.4 x 7.9 mm (6.46 x 2.97 x 0.31 in)
Weight 183.7 g (6.49 oz)
SIM Nano-SIM + Nano-SIM
 IP64 dust tight and water resistant (water splashes)
Display for Xiaomi Redmi Note 15
Type AMOLED, 68B colors, 120Hz, 3840Hz PWM, 3200 nits (peak)
Size 6.77 inches, 110.9 cm2 (~89.7% screen-to-body ratio)
Resolution 1080 x 2392 pixels (~388 ppi density)
Protection Mohs level 5
Platform
OS Android 15, up to 4 major Android upgrades, HyperOS 2
Chipset Mediatek Helio G100 Ultra (6 nm)
CPU Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Mali-G57 MC2
Memory
Card slot microSDXC (uses shared SIM slot)
Internal 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM, 512GB 8GB RAM
Main Camera
Dual 108 MP, f/1.7, 24mm (wide), 1/1.67", 0.64µm, PDAF
Auxiliary lens
Features LED flash, HDR, panorama
Video 1080p@30/60fps
Selfie camera
Single 20 MP, f/2.2, (wide), 1/4.0", 0.7µm
Video 1080p@30fps
Sound
Loudspeaker Yes, with stereo speakers (with Dolby Atmos)
3.5mm jack No
 24-bit/192kHz Hi-Res audio
Comms
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth 5.3, A2DP, LE
Positioning GPS, GALILEO, GLONASS, QZSS, BDS
NFC Yes (market/region dependent)
Radio No
USB USB Type-C 2.0, OTG
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, compass, proximity
Battery
Type 6000 mAh
Charging 33W wired
18W reverse wired
Misc
Colors Black, Forest Green, Glacier Blue, Purple
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VIVO Y31D

Rs. 72,999

Vivo Y31d
Key Specs
Display 6.75""
Battery 7200 mAh
Camera 50 MP + 2 MP
Storage 128GB Built-in
Network
Technology GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100
4G bands 1, 3, 7, 8, 20
Speed HSPA, LTE
Launch
Announced 2026, January 16
Status Available. Released 2026, January
Body
Dimensions 166.6 x 78.4 x 8.4 mm (6.56 x 3.09 x 0.33 in)
Weight 219 g (7.72 oz)
Build Glass front, plastic frame, plastic back
SIM Nano-SIM + Nano-SIM
 IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)
Display for Vivo Y31d
Type IPS LCD, 120Hz, 1250 nits (HBM)
Size 6.75 inches, 111.4 cm2 (~85.3% screen-to-body ratio)
Resolution 720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
Platform
OS Android 16, OriginOS 6
Chipset Qualcomm Snapdragon 6s 4G Gen 2
CPU Octa-core (4x2.9 GHz Cortex-A73 & 4x1.9 GHz Cortex-A53)
GPU Adreno
Memory
Card slot dedicated slot
Internal 128GB 6GB RAM
 UFS 2.2
Main Camera
Dual 50 MP, f/2.0, 21mm (wide), PDAF
2 MP
Features LED flash, HDR, panorama
Video 1080p@30fps
Selfie camera
Single 8 MP, f/2.1, (wide)
Video 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 5.1, A2DP, LE
Positioning GPS, GALILEO, GLONASS, BDS, QZSS
NFC No
Infrared port Yes
Radio FM Radio
USB USB Type-C 2.0, OTG
Features
Sensors Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Battery
Type Si/C Li-Ion 7200 mAh
Charging 44W wired, 50% in 43 min
Reverse wired
Bypass Charging