Oppo A3x
#1900
Realme C75
#2151Category Breakdown
Oppo A3x
Realme C75
Performance
81.281.2
Camera
35.529.6
Display
84.379.5
Battery
36.137.7
Build
15.30.2
Connectivity
75.175.1
Audio
8.98.9
Overall
53.651.4
Summary
- The Oppo A3x and Realme C75 both feature a 6.67-inch IPS LCD display with a 120Hz refresh rate and a resolution of 720 x 1604 pixels, but the A3x offers a peak brightness of 1000 nits compared to the C75's 625 nits.
- In terms of performance, both devices utilize the Mediatek Dimensity 6300 chipset, with similar CPU and GPU configurations, though the C75 offers an additional RAM option.
- The camera systems differ significantly, as the A3x has an 8 MP rear camera and a 5 MP selfie camera, while the C75 boasts a 32 MP rear camera and an 8 MP front camera.
- Battery capacity is another distinction; the A3x has a 5100 mAh battery, while the C75 features a larger 6000 mAh battery, both supporting 45W charging.
- Lastly, the A3x runs on Android 14 with ColorOS 14, while the C75 operates on Android 15 with Realme UI 6.0, indicating a more recent software experience for the C75.
Side-by-side Specification Comparison
Oppo A3x
Realme C75
General
Release Date
2024, August 02
2025, May 02
Announced
2024, August 02
2025, May 02
Description
Not to be confused withOppo A3xfor China market,Oppo A3x 4G
Not to be confused withRealme C75 4G
Display
Size
6.67"
6.67"
Type
IPS LCD, 120Hz, 1000 nits (HBM)
IPS LCD, 120Hz, 625 nits
Resolution
720 x 1604 pixels, 20:9 ratio (~264 ppi density)
720 x 1604 pixels, 20:9 ratio (~264 ppi density)
PPI
720
720
Refresh Rate
120Hz
120Hz
HDR Support
✗
✗
Protection
Panda glass
N/A
Performance
Chipset
Mediatek Dimensity 6300 (6 nm)
Mediatek Dimensity 6300 (6 nm)
CPU
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
Mali-G57 MC2
Mali-G57 MC2
Memory
64GB 4GB RAM, 128GB 4GB RAM
64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC
microSDXC (uses shared SIM slot)
Camera
Main Camera
8 MP, f/2.0, (wide), PDAFAuxiliary lens
32 MP, f/1.8, 27mm (wide), 1/3.1", PDAF
Main Camera Features
LED flash, HDR, panorama
LED flash, panorama
Front Camera
5 MP, f/2.2, (wide)
8 MP, f/2.0, (wide)
Front Camera Features
N/A
Panorama
Video Recording
1080p@30/60fps
1080p@30fps
Selfie Video
1080p@30fps
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
5100 mAh
6000 mAh
Battery Details
5100 mAh
Li-Po 6000 mAh
Charging Details
45W wired, PD2.0, 50% in 30 min
45W wired5W reverse wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
165.7 x 76 x 7.7 mm (6.52 x 2.99 x 0.30 in)
165.7 x 76.2 x 7.9 mm (6.52 x 3.00 x 0.31 in)
Weight
187 g
190 g
Materials
N/A
N/A
Colors
Sparkle Black, Starlight White, Starry Purple
Midnight Lily, Purple Blossom, Lily White
Foldable
✗
✗
SAR
1.05 W/kg (head) 0.78 W/kg (body)
N/A
Connectivity
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE / 5G
GSM / HSPA / LTE / 5G
Network Speed
HSPA, LTE, 5G
HSPA, LTE, 5G
5G
✓
✓
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
5.3, A2DP, LE
5.3, A2DP, LE
NFC
✗
✗
USB
USB Type-C 2.0, OTG
USB Type-C 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GALILEO, GLONASS, BDS, QZSS
GPS, GALILEO, GLONASS, QZSS, BDS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 14, ColorOS 14
Android 15, Realme UI 6.0
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (side-mounted), accelerometer, proximity, compass
Fingerprint (side-mounted), accelerometer, proximity, compass