Product
Oppo A3x (China)
Oppo A3x (China)
Oppo K13x
Oppo K13x
Battery
Charging 45W wired, PD, 50% in 30 min 45W wired, 33W PPS, 13.5W PD, 50% in 37 min
Type 5100 mAh 6000 mAh
Body
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)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 186 g (6.56 oz) 194 g (6.84 oz)
  IP54 dust protected and water resistant (water splashes) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions 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 5.3, A2DP, LE, aptX HD 5.4, A2DP, LE, aptX HD
NFC No No
Positioning GPS, GALILEO, GLONASS, BDS, QZSS GPS, GALILEO, GLONASS, BDS, QZSS
Radio No Unspecified
USB USB Type-C 2.0, OTG USB Type-C 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band Wi-Fi 802.11 a/b/g/n/ac, dual-band
Display
Resolution 720 x 1604 pixels, 20:9 ratio (~264 ppi density) 720 x 1604 pixels, 20:9 ratio (~264 ppi density)
Size 6.67 inches, 107.2 cm2 (~85.2% screen-to-body ratio) 6.67 inches, 107.2 cm2 (~84.9% screen-to-body ratio)
Type IPS LCD, 120Hz, 1000 nits (HBM) 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 2024, July 27 2025, June 23
Status Available. Released 2024, August Available. Released 2025, June 27
Main Camera
Dual 32 MP, f/1.8, (wide), PDAF 2 MP, f/2.4, (depth) 50 MP, f/1.8, (wide), PDAF 2 MP, f/2.4, (wide)
Features LED flash, HDR, panorama LED flash, HDR, panorama
Video 1080p@30/60fps 1080p@30fps
Memory
Card slot microSDXC microSDXC
Internal 128GB 4GB RAM, 128GB 6GB RAM, 256GB 8GB RAM, 512GB 8GB RAM 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
  UFS 2.2 UFS 2.2
Misc
Colors Black, Purple, White Sunset Peach, Midnight Violet
Models PKD130 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, 28, 34, 38, 39, 40, 41 1, 3, 5, 8, 28, 40, 41
5G bands 1, 5, 8, 28, 41, 77, 78 SA/NSA 1, 3, 5, 8, 28, 40, 41, 77, 78 SA/NSA
Speed HSPA, LTE, 5G HSPA, LTE, 5G
Technology GSM / CDMA / HSPA / CDMA2000 / LTE / 5G GSM / HSPA / LTE / 5G
  CDMA2000 1x -
Platform
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
OS Android 14, ColorOS 14 Android 15, ColorOS 15
Selfie camera
Features - Panorama
Single 8 MP, f/2.0, (wide) 8 MP, f/2.0, (wide)
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes