Product
Vivo iQOO U1
Vivo iQOO U1
Oppo K13x
Oppo K13x
Battery
Charging 18W wired 45W wired, 33W PPS, 13.5W PD, 50% in 37 min
Type 4500 mAh 6000 mAh
Body
Dimensions 162.1 x 76.6 x 8.5 mm (6.38 x 3.02 x 0.33 in) 165.7 x 76.2 x 7.9 mm (6.52 x 3.00 x 0.31 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 190 g (6.70 oz) 194 g (6.84 oz)
  - IP65 dust tight and water resistant (low pressure water jets) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions
Comms
Bluetooth 5.1, A2DP, LE, aptX HD 5.4, A2DP, LE, aptX HD
NFC No No
Positioning GPS, GLONASS, BDS, GALILEO GPS, GALILEO, GLONASS, BDS, QZSS
Radio No Unspecified
USB microUSB 2.0, OTG USB Type-C 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac, dual-band
Display
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density) 720 x 1604 pixels, 20:9 ratio (~264 ppi density)
Size 6.53 inches, 104.7 cm2 (~84.3% screen-to-body ratio) 6.67 inches, 107.2 cm2 (~84.9% screen-to-body ratio)
Type IPS LCD IPS LCD, 120Hz, 850 nits (typ), 1000 nits (HBM)
Features
Sensors Fingerprint (side-mounted), accelerometer, proximity, compass Fingerprint (side-mounted), accelerometer, proximity, compass
Launch
Announced 2020, July 16 2025, June 23
Status Available. Released 2020, July 23 Available. Released 2025, June 27
Main Camera
Dual - 50 MP, f/1.8, (wide), PDAF 2 MP, f/2.4, (wide)
Features LED flash, HDR, panorama LED flash, HDR, panorama
Triple 48 MP, f/1.8, 25mm (wide), 1/2.0", 0.8µm, PDAF 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) -
Video 4K@30fps, 1080p@30fps; gyro-EIS 1080p@30fps
Memory
Card slot No microSDXC
Internal 64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
  UFS 2.1 UFS 2.2
Misc
Colors Black, Blue, White Sunset Peach, Midnight Violet
Models V2023A CPH2753
SAR - 1.18 W/kg (head)     1.05 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 HSDPA 900 / 2100
4G bands 1, 3, 5, 8, 34, 38, 39, 40, 41 1, 3, 5, 8, 28, 40, 41
5G bands - 1, 3, 5, 8, 28, 40, 41, 77, 78 SA/NSA
Speed HSPA, LTE HSPA, LTE, 5G
Technology GSM / CDMA / HSPA / LTE GSM / HSPA / LTE / 5G
  CDMA 800 & TD-SCDMA -
Platform
Chipset Qualcomm SM7125 Snapdragon 720G (8 nm) Mediatek Dimensity 6300 (6 nm)
CPU Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver) Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Adreno 618 Mali-G57 MC2
OS Android 10, iQOO UI 1.0 Android 15, ColorOS 15
Selfie camera
Features HDR Panorama
Single 8 MP, f/2.1, (wide) 8 MP, f/2.0, (wide)
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes