Vivo Y51a vs Xiaomi Redmi 17 5g
Product
Price
249 USD
249 USD
Status
Available
Available
Brand
Vivo Mobiles
Xiaomi Mobiles
Model No
Y51a
Xiaomi Redmi 17
Launch Date
2021, January 08
2026, August 10
Technology
GSM / HSPA / LTE
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
1, 3, 5, 8, 40
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 38, 40, 41, 42, 48, 66, 71
Speed
HSPA 42.2/5.76 Mbps, LTE-A
HSPA, LTE, 5G
5G bands
1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 48, 66, 71, 77, 78 SA/NSA
Dimensions
163.9 x 75.3 x 8.4 mm (6.45 x 2.96 x 0.33 in)
170.1 x 78.4 x 8.8 mm (6.70 x 3.09 x 0.35 in)
Weight
188 g (6.63 oz)
232 g (8.18 oz)
SIM
Dual SIM (Nano-SIM, dual stand-by)
Nano-SIM + Nano-SIM
Colors
Titanium Sapphire, Crystal Symphony
Black, Deep Blue, Vivid Orange
Build
Glass front (Gorilla Glass 7i), plastic back or silicone polymer (eco leather) back, plastic frame
IP64 dust tight and water resistant (water splashes)
RGB light (on the back)
Type
IPS LCD
IPS LCD, 120Hz, 825 nits (HBM)
Size
6.58 inches, 101.5 cm2 (~82.2% screen-to-body ratio)
6.9 inches, 114.9 cm2 (~86.2% screen-to-body ratio)
Resolution
1080 x 2408 pixels, 21:9 ratio (~415 ppi density)
720 x 1600 pixels, 20:9 ratio (~254 ppi density)
OS
Android 11, Funtouch 11
Android 16, HyperOS 3
Chipset
Qualcomm SM6115 Snapdragon 662 (11 nm)
Qualcomm Snapdragon 4 Gen 5
CPU
Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
Octa-core 2.4 GHz
GPU
Adreno 610
Adreno
RAM
8GB
4GB/6GB
Storage
128GB
128GB/256GB
eMMC 5.1
Card Slot
microSDXC (dedicated slot)
microSDXC
Lens 1
8 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF
50 MP, f/1.8, (wide), PDAF
Lens 2
8 MP, f/2.2, 120˚, (ultrawide), 1/4.0", 1.12µm
Auxiliary lens
Lens 3
2 MP, f/2.4, (macro)
Features
LED flash, HDR, panorama
LED flash, HDR
Video
4K@30fps, 1080p@30fps, gyro-EIS
1080p@30fps
Lens 1
16 MP, f/2.0, (wide), 1/3.06" 1.0µm
8 MP, f/2.1, (wide)
Features
HDR
HDR
Video
1080p@30fps
1080p@30fps
Capacity
Li-Po 5000 mAh, non-removable
Si/C Li-Ion 7500 mAh
Charging
Fast charging 18W, 70% in 67 min (advertised)
45W wired, 51% in 40 min, 100% in 96 min
22.5W reverse wired
Sensors
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Fingerprint (side-mounted), accelerometer, compass
Virtual proximity sensing
Loudspeaker
Yes
Yes, with stereo speakers
3.5mm jack
Yes
Yes
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
5.0, A2DP, LE
5.1, A2DP, LE
GPS
Yes, with A-GPS, GLONASS, GALILEO, BDS
GPS, GLONASS, GALILEO, BDS
NFC
No
Yes (market/region dependent)
Radio
FM radio
FM radio
USB
USB Type-C 2.0, USB On-The-Go
USB Type-C 2.0