Vivo iQOO U1 vs Xiaomi Redmi 15a
Product
Price
159 USD
159 USD
Status
Available
Available
Brand
Vivo Mobiles
Xiaomi Mobiles
Model No
vivo iQOO U1
Xiaomi Redmi 15a
Launch Date
2020, July 16
2026, March 27
Technology
GSM / CDMA / HSPA / LTE
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA 800 & TD-SCDMA
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 900 / 2100
HSDPA 850 / 900 / 2100
4G bands
1, 3, 5, 8, 34, 38, 39, 40, 41
1, 3, 5, 8, 28, 40, 41
Speed
HSPA 42.2/5.76 Mbps, LTE-A
HSPA, LTE, 5G
5G bands
1, 3, 5, 8, 28, 40, 41, 78 SA/NSA
Dimensions
162.1 x 76.6 x 8.5 mm (6.38 x 3.02 x 0.33 in)
171.6 x 79.5 x 8.2 mm (6.76 x 3.13 x 0.32 in)
Weight
190 g (6.70 oz)
210 g (7.41 oz)
SIM
Dual SIM (Nano-SIM, dual stand-by)
Nano-SIM + Nano-SIM
Colors
Star Blue, Secret Black, Sunny Frost White
Black, Blue, Purple
Type
IPS LCD capacitive touchscreen, 16M colors
IPS LCD, 120Hz, 800 nits (peak)
Size
6.53 inches, 104.7 cm2 (~84.3% screen-to-body ratio)
6.9 inches, 114.9 cm2 (~84.3% screen-to-body ratio)
Resolution
1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density)
720 x 1600 pixels, 20:9 ratio (~254 ppi density)
OS
Android 10, iQOO UI 1.0
Android 16, HyperOS 3, up to 4 major Android upgrades
Chipset
Qualcomm SM7125 Snapdragon 720G (8 nm)
Unisoc T8300 (6 nm)
CPU
Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)
Octa-core (2x2.2 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
GPU
Adreno 618
Mali-G57 MC2
RAM
6GB/8GB
4GB/6GB
Storage
128GB/256GB
64GB/128GB
Card Slot
No
Lens 1
48 MP, f/1.8, 25mm (wide), 1/2.0", 0.8µm, PDAF
32 MP, f/2.0, (wide), 1.12µm, AF
Lens 2
2 MP, f/2.4, (macro)
Auxiliary lens
Lens 3
2 MP, f/2.4, (depth)
Features
Continuos Shooting, High Dynamic Range mode (HDR), Digital Zoom, Auto Flash, Face detection, Touch to focus
Video
4K@30fps, 1080p@30fps; gyro-EIS
Lens 1
8 MP, f/2.1, (wide)
8 MP, f/2.0, (wide), 1/4.0", 1.12µm
Features
AF, Face Focus, Face Detection etc
HDR
Video
1080p@30fps
1080p@30fps
Capacity
Li-Po 4500 mAh, non-removable
6300 mAh
Charging
Fast charging 18W
15W wired
7.5W reverse wired
Sensors
Fingerprint (side-mounted), accelerometer, proximity, compass
Fingerprint (side-mounted), accelerometer, compass
Virtual proximity sensing
Loudspeaker
Yes
Yes
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
5.1, A2DP, LE, aptX HD
5.4, A2DP, LE
GPS
Yes, with A-GPS, GLONASS, BDS, GALILEO
GPS, GLONASS, GALILEO, BDS
USB
microUSB 2.0, USB On-The-Go
USB Type-C 2.0, OTG
Radio
FM radio, recording