Product
Realme U1
Realme U1
₹13,505
Oppo A5x
Oppo A5x
₹16,999
Battery
Charging 10W wired 45W wired, 33W PPS, 13.5W PD, 50% in 37 min
Type Li-Ion 3500 mAh, non-removable 6000 mAh
Body
Build Glass front (Gorilla Glass 3), plastic back, plastic frame -
Dimensions 157 x 74 x 8 mm (6.18 x 2.91 x 0.31 in) 165.7 x 76.2 x 8 mm (6.52 x 3.00 x 0.31 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 168 g (5.93 oz) 193 g (6.81 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 4.2, A2DP, LE 5.1, A2DP, LE
NFC No No
Positioning GPS, GLONASS GPS, GALILEO, GLONASS, BDS, QZSS
Radio FM radio Unspecified
USB microUSB 2.0, OTG USB Type-C 2.0, OTG
WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac, dual-band
Display
Protection Corning Gorilla Glass 3 Unspecified
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~409 ppi density) 720 x 1604 pixels, 20:9 ratio (~264 ppi density)
Size 6.3 inches, 97.4 cm2 (~83.9% screen-to-body ratio) 6.67 inches, 107.2 cm2 (~84.9% screen-to-body ratio)
Type IPS LCD IPS LCD, 120Hz, 1000 nits (HBM)
Features
Sensors Fingerprint (rear-mounted), accelerometer, proximity, compass Fingerprint (side-mounted), accelerometer, proximity, compass
Launch
Announced 2018, November. Released 2018, December 2025, May 23
Status Discontinued Available. Released 2025, May 25
Main Camera
Dual 13 MP, f/2.2, AF 2 MP, f/2.4, (depth) -
Features LED flash, HDR, panorama LED flash, HDR, panorama
Single - 32 MP, f/1.9, (wide), AF
Video 1080p@30fps, 720p@90fps Yes
Memory
Card slot microSDXC (dedicated slot) microSDXC
Internal 32GB 3GB RAM, 64GB 3GB RAM, 64GB 4GB RAM 128GB 4GB RAM
  eMMC 5.1 UFS 2.2
Misc
Colors Ambitious Black, Brave Blue, Fiery Gold Tranquil Lake Green, Laser White
Models RMX1831, RMX1833 -
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 2100
4G bands 1, 3, 5, 8, 38, 40, 41 LTE
5G bands - SA/NSA
Speed HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps HSPA, LTE, 5G
Technology GSM / HSPA / LTE GSM / HSPA / LTE / 5G
Our Tests
Audio quality Noise -92.8dB / Crosstalk -93.3dB -
Battery (old) Endurance rating 93h -
Camera Photo / Video -
Display Contrast ratio: 1830:1 (nominal), 2.815 (sunlight) -
Loudspeaker Voice 68dB / Noise 73dB / Ring 72dB -
Performance AnTuTu: 144436 (v7) GeekBench: 6004 (v4.4) GFXBench: 7.1fps (ES 3.1 onscreen) -
Platform
Chipset Mediatek MT6771 Helio P70 (12 nm) Mediatek Dimensity 6300 (6 nm)
CPU Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Mali-G72 MP3 Mali-G57 MC2
OS Android 8.1 (Oreo), upgradable to Android 9.0 (Pie), ColorOS 6 Android 15, ColorOS 15
Selfie camera
Features HDR -
Single 25 MP, f/2.0, 1/2.8", 0.9µm 5 MP, f/2.2, (wide)
Video 1080p@30fps Yes
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes
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