Realme C100 4G vs Xiaomi Redmi 15a

Verdict

The Realme C100 4G scores higher in 2 of 6 sections (design & durability and display), while the Xiaomi Redmi 15a leads in connectivity & features; they are even on performance, camera and battery.

The biggest difference is design & durability: 74 vs 33 points.

Choose the Realme C100 4G for design & durability and display; choose the Xiaomi Redmi 15a for connectivity & features.

C100 4G leads in 8 fields
Redmi 15a leads in 6 fields
22 ties

36 scored fields compared

Score by section

Section scores	C100 4G	Redmi 15a
Overall
Performance	37	36
Camera	10	9
Battery	56	55
Display	53	48
Design & durability	74	33
Connectivity & features	38	44

Full specifications

Only differences

Performance

Chipset performance index: C100 4G: 23/100; Redmi 15a: 30/100(Better)
Chipset: C100 4G: Helio G92 Max; Redmi 15a: Unisoc T8300
RAM (max): C100 4G: 8 GB(Better); Redmi 15a: 6 GB
Storage (max): C100 4G: 256 GB(Better); Redmi 15a: 128 GB
Process node: C100 4G: Unknown; Redmi 15a: 6 nm

Camera

Main camera resolution: C100 4G: 50 MP(Better); Redmi 15a: 32 MP
Optical stabilization (OIS): C100 4G: No; Redmi 15a: No
Ultra-wide camera: C100 4G: No; Redmi 15a: No
Telephoto camera: C100 4G: No; Redmi 15a: No
Periscope lens: C100 4G: No; Redmi 15a: No
Optical zoom: C100 4G: No; Redmi 15a: No
Video recording: C100 4G: 1080p; Redmi 15a: 1080p
Front camera: C100 4G: 8 MP; Redmi 15a: 8 MP
Front camera 4K video: C100 4G: No; Redmi 15a: No

Battery

Battery capacity: C100 4G: 8000 mAh(Better); Redmi 15a: 6300 mAh
Wired charging: C100 4G: 15 W; Redmi 15a: 15 W
Wireless charging: C100 4G: No; Redmi 15a: No
Reverse charging: C100 4G: Yes; Redmi 15a: Yes
Reverse charging type: C100 4G: Wired; Redmi 15a: Wired

Display

Screen size: C100 4G: 6.8″; Redmi 15a: 6.9″
Panel type: C100 4G: LCD; Redmi 15a: LCD
Refresh rate: C100 4G: 120 Hz; Redmi 15a: 120 Hz
Pixel density: C100 4G: 254 ppi; Redmi 15a: 254 ppi
Peak brightness: C100 4G: 1200 nits(Better); Redmi 15a: 800 nits
Resolution: C100 4G: 720x1570; Redmi 15a: 720x1600
Screen protection: C100 4G: ArmorShell Glass; Redmi 15a: Unknown

Design & durability

Weight: C100 4G: 219 g; Redmi 15a: 210 g(Better)
Thickness: C100 4G: 8.6 mm; Redmi 15a: 8.2 mm(Better)
Dust & water resistance: C100 4G: IP68 + IP69(Better); Redmi 15a: None
Back material: C100 4G: Plastic; Redmi 15a: Unknown
Frame material: C100 4G: Plastic; Redmi 15a: Unknown

Connectivity & features

5G: C100 4G: No; Redmi 15a: Yes(Better)
Wi-Fi: C100 4G: Wi-Fi 5; Redmi 15a: Wi-Fi 5
Bluetooth: C100 4G: 5.3; Redmi 15a: 5.4(Better)
USB speed: C100 4G: USB 2.0; Redmi 15a: USB 2.0
USB port: C100 4G: USB-C 2.0; Redmi 15a: USB-C 2.0
DisplayPort output: C100 4G: No; Redmi 15a: No
NFC: C100 4G: Yes(Better); Redmi 15a: No
eSIM: C100 4G: No; Redmi 15a: No
Ultra-wideband (UWB): C100 4G: No; Redmi 15a: No
Satellite connectivity: C100 4G: No; Redmi 15a: No
Stereo speakers: C100 4G: Yes(Better); Redmi 15a: No
3.5 mm headphone jack: C100 4G: Yes; Redmi 15a: Yes
Fingerprint reader: C100 4G: Side-mounted; Redmi 15a: Side-mounted
3D face unlock: C100 4G: No; Redmi 15a: No
Infrared blaster: C100 4G: No; Redmi 15a: No
FM radio: C100 4G: No; Redmi 15a: Yes(Better)
microSD slot: C100 4G: Yes; Redmi 15a: Yes
Card slot: C100 4G: microSD (shared SIM slot); Redmi 15a: microSD

General

Operating system: C100 4G: Android 16; Redmi 15a: Android 16
OS updates (major versions): C100 4G: Unknown; Redmi 15a: 4
Launch price: C100 4G: About 250 EUR; Redmi 15a: About 120 EUR
Year: C100 4G: 2026; Redmi 15a: 2026

Show raw spec text

Original text from the source spec sheet, for reference.

—	C100 4G	Redmi 15a
Network
Technology	GSM / HSPA / LTE	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, 7, 8, 20, 28, 38, 40, 41	1, 3, 5, 8, 28, 40, 41
Speed	HSPA, LTE	HSPA, LTE, 5G
5G bands	–	1, 3, 5, 8, 28, 40, 41, 78 SA/NSA
Launch
Announced	2026, April 07	2026, March 27
Status	Available. Released 2026, April 07	Available. Released 2026, April 03
Body
Dimensions	166.5 x 78.2 x 8.6 mm (6.56 x 3.08 x 0.34 in)	171.6 x 79.5 x 8.2 mm (6.76 x 3.13 x 0.32 in)
Weight	219 g (7.72 oz)	210 g (7.41 oz)
Build	Glass front, plastic frame, plastic back	–
SIM	Nano-SIM + Nano-SIM IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 6m for 30 min) Drop resistant up to 2m	Nano-SIM + Nano-SIM Dust and splash resistant
Display
Type	IPS LCD, 120Hz, 1200 nits (HBM)	IPS LCD, 120Hz, 800 nits (peak)
Size	6.8 inches, 113.0 cm2 (~86.8% screen-to-body ratio)	6.9 inches, 114.9 cm2 (~84.3% screen-to-body ratio)
Resolution	720 x 1570 pixels, 19.5:9 ratio (~254 ppi density)	720 x 1600 pixels, 20:9 ratio (~254 ppi density)
Protection	ArmorShell Glass	–
Platform
OS	Android 16, Realme UI 7.0	Android 16, HyperOS 3, up to 4 major OS updates
Chipset	Mediatek Helio G92 Max	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-G52 MC2	Mali-G57 MC2
Memory
Card slot	microSDXC (uses shared SIM slot)	microSDXC (dedicated slot)
Internal	128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM eMMC 5.1	64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM UFS 2.2
Main Camera
Single	50 MP, f/1.8, (wide), PDAF	–
Features	LED flash, HDR, panorama	LED flash, HDR
Video	1080p@30fps	1080p@30fps
Dual	–	32 MP, f/2.0, (wide), 1.12µm, AF Auxiliary lens
Selfie camera
Single	8 MP, f/2.0, (wide)	8 MP, f/2.0, (wide), 1/4.0", 1.12µm
Video	1080p@30fps	1080p@30fps
Features	–	HDR
Sound
Loudspeaker	Yes, with stereo speakers	Yes
3.5mm jack	Yes 24-bit/192kHz Hi-Res audio	Yes
Comms
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
Positioning	GPS, GALILEO, GLONASS, QZSS, BDS	GPS, GLONASS, GALILEO, BDS
NFC	Yes (market/region dependent)	No
Radio	No	FM radio, recording
USB	USB Type-C 2.0, OTG	USB Type-C 2.0, OTG
Features
Sensors	Fingerprint (side-mounted), accelerometer, proximity, compass	Fingerprint (side-mounted), accelerometer, compass Virtual proximity sensing
Battery
Type	Si/C Li-Ion 8000 mAh	6300 mAh
Charging	15W wired Reverse wired Bypass charging	15W wired 7.5W reverse wired
Misc
Colors	Glory White, Triumphant Purple, Eternal Brown	Black, Blue, Purple
Price	About 250 EUR	About 120 EUR