Product
Vivo Y55
Vivo Y55
Xiaomi Redmi K80 Ultra
Xiaomi Redmi K80 Ultra
Battery
Charging 44W wired, 50% in 27 min 100W wired, PD3.0 Bypass charging
Type 5000 mAh Si/C Li-Ion 7410 mAh
Body
Build Glass front, plastic frame, plastic back Glass front, aluminum frame
Dimensions 160.8 x 73.8 x 8.4 mm (6.33 x 2.91 x 0.33 in) 163.1 x 77.9 x 8.2 mm (6.42 x 3.07 x 0.32 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 182 g (6.42 oz) 219 g (7.72 oz)
  - IP68 dust tight and water resistant (immersible up to 2m for 30 min)
Comms
Bluetooth 5.0, A2DP, LE 5.4, A2DP, LE, LHDC 5
Infrared port - Yes
NFC No Yes
Positioning GPS, GLONASS, GALILEO, BDS GPS (L1+L5), BDS (B1I+B1C+B2a+B2b), GALILEO (E1+E5a+E5b), QZSS (L1+L5), NavIC, GLONASS
Radio FM radio Unspecified
USB USB Type-C 2.0, OTG USB Type-C
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band, Wi-Fi Direct
Display
Protection Schott Xensation glass Scratch/drop-resistant glass
Resolution 1080 x 2400 pixels, 20:9 ratio (~409 ppi density) 1280 x 2772 pixels, 19.5:9 ratio (~447 ppi density)
Size 6.44 inches, 100.1 cm2 (~84.4% screen-to-body ratio) 6.83 inches, 114.5 cm2 (~90.2% screen-to-body ratio)
Type AMOLED OLED, 68B colors, 144Hz, Dolby Vision, HDR10+, HDR Vivid, 1800 nits (HBM), 3200 nits (peak)
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass
Launch
Announced 2022, July 02 2025, June 26
Status Available. Released 2022, July 02 Available. Released 2025, June 26
Main Camera
Dual - 50 MP, f/1.9, 23mm (wide), 1/1.55", 1.0µm, PDAF, OIS 8 MP, 119˚ (ultrawide), 1/4.0", 1.12µm
Features LED flash, HDR, panorama Color spectrum sensor, Dual-LED dual-tone flash, HDR, panorama
Triple 50 MP, f/1.8, (wide), 1/2.76", 0.64µm, PDAF 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) -
Video 1080p@30fps, gyro-EIS 8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS
Memory
Card slot microSDXC (dedicated slot) No
Internal 128GB 8GB RAM 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
  - UFS 4.1
Misc
Colors Midnight Galaxy, Ice Dawn Gray, White, Blue, Green
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 HSDPA 800 / 850 / 900 / 1700(AWS) / 2100
4G bands 1, 3, 5, 8, 40 1, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42, 48, 66
5G bands - 1, 3, 5, 7, 8, 26, 28, 38, 40, 41, 48, 66, 77, 78 SA/NSA
Speed HSPA, LTE HSPA, LTE, 5G
Technology GSM / HSPA / LTE GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
  - CDMA2000 1x
Platform
Chipset Qualcomm SM6225 Snapdragon 680 4G (6 nm) Mediatek Dimensity 9400+ (3 nm)
CPU Octa-core (4x2.4 GHz Kryo 265 Gold & 4x1.9 GHz Kryo 265 Silver) Octa-core (1x3.63 GHz Cortex-X925 & 3x3.3 GHz Cortex-X4 & 4x2.4 GHz Cortex-A720)
GPU Adreno 610 Immortalis-G925
OS Android 12, Funtouch 12 Android 15, HyperOS 2
Selfie camera
Features - HDR
Single 16 MP, f/2.0, (wide) 20 MP, (wide), 1/2.0", 0.8µm
Video 1080p@30fps 1080p@30/60fps
Sound
3.5mm jack Yes No
Loudspeaker Yes Yes, with stereo speakers
  24-bit/192kHz Hi-Res audio 24-bit/192kHz Hi-Res & Hi-Res Wireless audio