Oppo A3x vs Tecno Spark 40 Pro
Product
Price
149 USD
149 USD
Status
Available
Available
Brand
Oppo Mobiles
Tecno Mobiles
Model No
CPH2681
KM6
Launch Date
2024, August 02
2025, September 16
Website
Technology
GSM / HSPA / LTE / 5G
GSM / HSPA / LTE
2G bands
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
1, 3, 5, 8, 28, 40, 41
1, 2, 3, 4, 5, 7, 8, 12, 20, 28, 38, 40, 41, 66
5G bands
1, 3, 5, 8, 28, 41, 77, 78 SA/NSA
Speed
HSPA, LTE, 5G
HSPA, LTE
Dimensions
165.7 x 76 x 7.7 mm (6.52 x 2.99 x 0.30 in)
163.7 x 75.9 x 6.7 mm (6.44 x 2.99 x 0.26 in)
Weight
187 g (6.60 oz)
Build
Panda glass
IP54, dust and splash resistant
MIL-STD-810H compliant*
Glass front (Gorilla Glass 7i), plastic back, plastic frame
IP64 dust tight and water resistant (water splashes)
Drop resistant up to 1.5m
SIM
Dual SIM (Nano-SIM, dual stand-by)
Nano-SIM + Nano-SIM
Colors
Sparkle Black, Starlight White, Starry Purple
Ink Black, Moon Titanium, Lake Blue, Bamboo Green
Type
IPS LCD, 120Hz, 1000 nits (HBM)
AMOLED, 1B colors, 144Hz, 1600 nits (HBM), 4500 nits (peak)
Size
6.67 inches, 107.2 cm2 (~85.2% screen-to-body ratio)
6.78 inches, 111.0 cm2 (~89.3% screen-to-body ratio)
Resolution
720 x 1604 pixels, 20:9 ratio (~264 ppi density)
1224 x 2720 pixels, 20:9 ratio (~440 ppi density)
OS
Android 14, ColorOS 14
Android 15, HIOS 15.1
Chipset
Mediatek Dimensity 6300 (6 nm)
Mediatek Helio G100 Ultimate (6 nm)
CPU
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
Mali-G57 MC2
Mali-G57 MC2
RAM
4GB
8GB
Storage
64GB/128GB
eMMC 5.1
128GB/56GB
Card Slot
microSDXC
microSDXC
Lens 1
8 MP, f/2.0, (wide), PDAF
50 MP, f/1.6, (wide), 1/2.8", 0.64µm, PDAF
Auxiliary lens
Lens 2
Auxiliary lens
Features
LED flash, HDR, panorama
Dual-LED flash, HDR
Video
1080p@30/60fps
1440p@30fps, 1080p@30fps
Lens 1
5 MP, f/2.2, (wide)
13 MP, f/2.2, (wide), 1/3.1", 1.12µm
Video
1080p@30fps
1080p@30fps
Features
Dual-LED flash
Capacity
5100 mAh, non-removable
5200 mAh
Charging
45W wired, PD2.0, 50% in 30 min (advertised)
45W wired
10W reverse wired
Sensors
Fingerprint (side-mounted), accelerometer, proximity, compass
Fingerprint (under display, optical), accelerometer, proximity, compass
Circle to Search
Loudspeaker
Yes
Yes, with stereo speakers
3.5mm jack
Yes
Yes
24-bit/192kHz Hi-Res & Hi-Res Wireless audio
WLAN
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
GPS
GPS, GALILEO, GLONASS, BDS, QZSS
Yes
USB
USB Type-C 2.0, OTG
USB Type-C 2.0, OTG
NFC
Yes (market/region dependent)
Radio
FM radio