Oppo A18 vs Tecno Spark 40 Pro
Product
Price
149 USD
149 USD
Status
Available
Available
Brand
Oppo Mobiles
Tecno Mobiles
Model No
CPH2591
KM6
Launch Date
2023, October 05
2025, September 16
Website
Technology
GSM / HSPA / LTE
GSM / HSPA / LTE
2G bands
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
1, 3, 5, 7, 8, 20, 28, 38, 40, 41
1, 2, 3, 4, 5, 7, 8, 12, 20, 28, 38, 40, 41, 66
Speed
HSPA, LTE
HSPA, LTE
Dimensions
163.7 x 75 x 8.2 mm (6.44 x 2.95 x 0.32 in)
163.7 x 75.9 x 6.7 mm (6.44 x 2.99 x 0.26 in)
Weight
188 g (6.63 oz)
Build
IP54, dust and splash resistant
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
Glowing Black, Glowing Blue
Ink Black, Moon Titanium, Lake Blue, Bamboo Green
Type
IPS LCD, 90Hz, 720 nits (peak)
AMOLED, 1B colors, 144Hz, 1600 nits (HBM), 4500 nits (peak)
Size
6.56 inches, 103.4 cm2 (~84.2% screen-to-body ratio)
6.78 inches, 111.0 cm2 (~89.3% screen-to-body ratio)
Resolution
720 x 1612 pixels, 20:9 ratio (~269 ppi density)
1224 x 2720 pixels, 20:9 ratio (~440 ppi density)
OS
Android 13, ColorOS 13.1
Android 15, HIOS 15.1
Chipset
Mediatek MT6769 Helio G85 (12nm)
Mediatek Helio G100 Ultimate (6 nm)
CPU
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
Mali-G52 MC2
Mali-G57 MC2
RAM
4GB
8GB
Storage
128GB
eMMC 5.1
128GB/56GB
Card Slot
microSDXC
microSDXC
Lens 1
8 MP, f/2.0, (wide), AF
50 MP, f/1.6, (wide), 1/2.8", 0.64µm, PDAF
Auxiliary lens
Lens 2
2 MP, f/2.4, (depth)
Features
LED flash, panorama
Dual-LED flash, HDR
Video
1080p@30fps
1440p@30fps, 1080p@30fps
Lens 1
5 MP, f/2.2, (wide)
13 MP, f/2.2, (wide), 1/3.1", 1.12µm
Features
Panorama
Dual-LED flash
Video
1080p@30fps
1080p@30fps
Capacity
Li-Po 5000 mAh, non-removable
5200 mAh
Charging
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, aptX HD
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