Samsung Galaxy M21
#1521
Xiaomi Redmi 15C 4G
#1556Category Breakdown
Samsung Galaxy M21
Xiaomi Redmi 15C 4G
Performance
76.580.0
Camera
64.428.4
Display
76.277.9
Battery
37.737.7
Build
89.174.3
Connectivity
62.264.8
Audio
8.98.9
Overall
57.457.1
Summary
- The Samsung Galaxy M21 features a 6.4-inch Super AMOLED display with a resolution of 1080 x 2340 pixels, while the Xiaomi Redmi 15C 4G has a larger 6.9-inch IPS LCD display with a lower resolution of 720 x 1600 pixels but supports a higher refresh rate of 120Hz.
- In terms of performance, the Galaxy M21 is powered by the Exynos 9611 chipset, whereas the Redmi 15C utilizes the Mediatek Helio G81 Ultra, offering different processing capabilities.
- The camera setup on the M21 includes a 48 MP main sensor and a 20 MP selfie camera, compared to the 50 MP rear camera and 8 MP front camera of the Redmi 15C.
- Both devices have a 6000 mAh battery, but the Redmi 15C supports faster charging at 33W versus the M21's 15W.
- The Galaxy M21 runs on Android 10 with One UI 3.1 Core, while the Redmi 15C comes with Android 15 and HyperOS 2, providing different software experiences.
- Build quality is similar with both featuring Gorilla Glass 3 on the front, but the Redmi 15C is slightly heavier and offers more color options.
Side-by-side Specification Comparison
Samsung Galaxy M21
Xiaomi Redmi 15C 4G
General
Release Date
2020, March 18
2025, August 01
Announced
2020, March 18
2025, August 01
Description
N/A
Not to be confused withXiaomi Redmi 15C 5G
Display
Size
6.4"
6.9"
Type
Super AMOLED, 420 nits (peak)
IPS LCD, 120Hz
Resolution
1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
720 x 1600 pixels, 20:9 ratio (~254 ppi density)
PPI
1080
720
Refresh Rate
60Hz
120Hz
HDR Support
✗
✗
Protection
Corning Gorilla Glass 3
Corning Gorilla Glass 3
Performance
Chipset
Exynos 9611 (10 nm)
Mediatek Helio G81 Ultra (12 nm)
CPU
Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU
Mali-G72 MP3
Mali-G52 MC2
Memory
64GB 4GB RAM, 128GB 6GB RAM
128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 4GB RAM, 256GB 8GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (dedicated slot)
Camera
Main Camera
48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm5 MP, f/2.2, (depth)
50 MP, f/1.8, 28mm (wide), 1/2.76", 0.64µm, PDAFAuxiliary lens
Main Camera Features
LED flash, panorama, HDR
LED flash, HDR
Front Camera
20 MP, f/2.2, 26mm (wide)
8 MP, f/2.0, (wide), 1/4.0", 1.12µm
Front Camera Features
HDR
HDR
Video Recording
4K@30fps, 1080p@30fps, 720p@240fps, gyro-EIS
1080p@30fps
Selfie Video
1080p@30fps
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
6000 mAh
6000 mAh
Battery Details
Li-Po 6000 mAh
6000 mAh
Charging Details
15W wired
33W wired, PD
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
159 x 75.1 x 8.9 mm (6.26 x 2.96 x 0.35 in)
171.6 x 79.5 x 8 mm (6.76 x 3.13 x 0.31 in)
Weight
188 g
205 g
Materials
Glass front (Gorilla Glass 3), plastic back, plastic frame
Glass front (Gorilla Glass 3), plastic frame, glass back or silicone polymer (eco leather) back
Colors
Midnight Blue, Raven Black
Moonlight Blue, Mint Green, Midnight Gray, Twilight Orange
Foldable
✗
✗
SAR
0.47 W/kg (head)
N/A
Connectivity
SIM
Nano-SIMNano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA, LTE
HSPA, LTE
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
5.0, A2DP, LE
5.4, A2DP, LE
NFC
✓
✓
USB
USB Type-C 2.0
USB Type-C 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, GALILEO, BDS
GPS, GLONASS, GALILEO, BDS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 10, upgradable to Android 11, One UI 3.1 Core
Android 15, HyperOS 2
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Fingerprint (side-mounted), accelerometer, compass