Realme C100i vs Tecno Spark 40 Pro
Product
Price
145 USD
149 USD
Status
Available
Available
Brand
Realme Mobiles
Tecno Mobiles
Model No
RMX5377
KM6
Launch Date
2026, April 30
2025, September 16
Technology
GSM / HSPA / LTE
GSM / HSPA / LTE
2G bands
GSM 850 / 900 / 1800 / 1900
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
166.5 x 78.2 x 8.4 mm (6.56 x 3.08 x 0.33 in)
163.7 x 75.9 x 6.7 mm (6.44 x 2.99 x 0.26 in)
Weight
208 g (7.34 oz)
Build
Glass front, plastic frame, plastic back
IP64 dust tight and water resistant (water splashes)
Drop resistant up to 2m
MIL-STD-810H compliant*
* does not guarantee ruggedness or use in extreme conditions
Glass front (Gorilla Glass 7i), plastic back, plastic frame
IP64 dust tight and water resistant (water splashes)
Drop resistant up to 1.5m
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Colors
Dawn Purple, Dusk Gray
Ink Black, Moon Titanium, Lake Blue, Bamboo Green
Type
IPS LCD, 120Hz
AMOLED, 1B colors, 144Hz, 1600 nits (HBM), 4500 nits (peak)
Size
6.8 inches, 113.0 cm2 (~86.8% screen-to-body ratio)
6.78 inches, 111.0 cm2 (~89.3% screen-to-body ratio)
Resolution
720 x 1570 pixels, 19.5:9 ratio (~254 ppi density)
1224 x 2720 pixels, 20:9 ratio (~440 ppi density)
OS
Android 16
Android 15, HIOS 15.1
Chipset
Unisoc T7250 (12 nm)
Mediatek Helio G100 Ultimate (6 nm)
CPU
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
Mali-G57 MP1
Mali-G57 MC2
RAM
4GB/6GB
8GB
Storage
64GB/128GB
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
Features
LED flash, HDR, 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
Video
720p@30fps
1080p@30fps
Features
Dual-LED flash
Capacity
Si/C Li-Ion 7000mAh
5200 mAh
Charging
15W wired, PD, QC
Reverse wired
45W wired
10W reverse wired
Sensors
Fingerprint (side-mounted), accelerometer, gyro, 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
5.2, A2DP, LE
5.3, A2DP, LE
GPS
GPS, GALILEO, GLONASS, BDS
Yes
USB
USB Type-C 2.0, OTG
USB Type-C 2.0, OTG
NFC
Yes (market/region dependent)
Radio
FM radio