Realme C75 5G vs Xiaomi Redmi 15a
Product
Price
159 USD
159 USD
Status
Available
Available
Brand
Realme Mobiles
Xiaomi Mobiles
Model No
RMX3943
Xiaomi Redmi 15a
Launch Date
2025, May 08
2026, March 27
Technology
GSM / HSPA / LTE / 5G
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 900 / 2100
HSDPA 850 / 900 / 2100
4G bands
1, 3, 5, 8, 28, 40, 41
1, 3, 5, 8, 28, 40, 41
5G bands
1, 3, 5, 8, 28, 40, 41, 77, 78 SA/NSA
1, 3, 5, 8, 28, 40, 41, 78 SA/NSA
Speed
HSPA, LTE, 5G
HSPA, LTE, 5G
Dimensions
165.7 x 76.2 x 7.9 mm (6.52 x 3.00 x 0.31 in)
171.6 x 79.5 x 8.2 mm (6.76 x 3.13 x 0.32 in)
Weight
190 g (6.70 oz)
210 g (7.41 oz)
Build
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
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Colors
Midnight Lily, Purple Blossom, Lily White
Black, Blue, Purple
Type
IPS LCD, 120Hz, 625 nits
IPS LCD, 120Hz, 800 nits (peak)
Size
6.67 inches, 107.2 cm2 (~84.9% screen-to-body ratio)
6.9 inches, 114.9 cm2 (~84.3% screen-to-body ratio)
Resolution
720 x 1604 pixels, 20:9 ratio (~264 ppi density)
720 x 1600 pixels, 20:9 ratio (~254 ppi density)
OS
Android 15, Realme UI 6.0
Android 16, HyperOS 3, up to 4 major Android upgrades
Chipset
Mediatek Dimensity 6300 (6 nm)
Unisoc T8300 (6 nm)
CPU
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
Octa-core (2x2.2 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
GPU
Mali-G57 MC2
Mali-G57 MC2
RAM
4GB/6GB
4GB/6GB
Storage
64GB/128GB
64GB/128GB
Card Slot
microSDXC (uses shared SIM slot)
Lens 1
32 MP, f/1.8, 27mm (wide), 1/3.1", PDAF
32 MP, f/2.0, (wide), 1.12µm, AF
Features
LED flash, panorama
Video
1080p@30fps
Lens 2
Auxiliary lens
Lens 1
8 MP, f/2.0, (wide)
8 MP, f/2.0, (wide), 1/4.0", 1.12µm
Features
Panorama
HDR
Video
1080p@30fps
1080p@30fps
Capacity
Li-Po 6000 mAh
6300 mAh
Charging
45W wired
5W reverse wired
15W wired
7.5W reverse wired
Sensors
Fingerprint (side-mounted), accelerometer, proximity, compass
Fingerprint (side-mounted), accelerometer, compass
Virtual proximity sensing
Loudspeaker
Yes
Yes
3.5mm jack
Yes
Yes
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
5.4, A2DP, LE
GPS
GPS, GALILEO, GLONASS, QZSS, BDS
GPS, GLONASS, GALILEO, BDS
USB
USB Type-C 2.0, OTG
USB Type-C 2.0, OTG
Radio
FM radio, recording