Product
Samsung Galaxy M21s
Samsung Galaxy M21s
Samsung Galaxy A13
Samsung Galaxy A13
Battery
Charging 15W wired 15W wired
Type Li-Po 6000 mAh Li-Po 5000 mAh
Body
Build Glass front (Gorilla Glass 3), plastic back, plastic frame Glass front (Gorilla Glass 5), plastic frame, plastic back
Dimensions 159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in) 165.1 x 76.4 x 8.8 mm (6.5 x 3.01 x 0.35 in)
SIM Nano-SIMNano-SIM + Nano-SIM Nano-SIMNano-SIM + Nano-SIM
Weight 191 g (6.74 oz) 195 g (6.88 oz)
Comms
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE
NFC No Yes (market/region dependent)
Positioning GPS, GLONASS, GALILEO, BDS GPS, GLONASS, GALILEO, BDS
Radio FM radio No
USB USB Type-C 2.0 USB Type-C 2.0, OTG
WLAN 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, Wi-Fi Direct
Display
Protection Corning Gorilla Glass 3 Corning Gorilla Glass 5
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density) 1080 x 2408 pixels, 20:9 ratio (~400 ppi density)
Size 6.4 inches, 100.5 cm2 (~84.1% screen-to-body ratio) 6.6 inches, 104.9 cm2 (~83.2% screen-to-body ratio)
Type Super AMOLED, 420 nits (peak) PLS LCD
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Fingerprint (side-mounted), accelerometer, compass
  - Virtual proximity sensing
Launch
Announced 2020, November 06 2022, March 04
Status Available. Released 2020, November 06 Available. Released 2022, March 23
Main Camera
Features LED flash, panorama, HDR LED flash, panorama, HDR
Quad - 50 MP, f/1.8, (wide), PDAF 5 MP, f/2.2, 123˚ (ultrawide), 1/5.0", 1.12µm 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth)
Triple 64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm5 MP, f/2.2, (depth) -
Video 4K@30fps, 1080p@30fps, gyro-EIS 1080p@30fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 64GB 4GB RAM, 128GB 6GB RAM 32GB 3GB RAM, 32GB 4GB RAM, 64GB 4GB RAM, 128GB 3GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
  eMMC 5.1 eMMC 5.1
Misc
Colors Blue, Black Black, White, Peach, Blue
Models SM-F415F, SM-F415F/DS SM-A135F, SM-A135F/DS, SM-A135M, SM-A135U, SM-A135U1, SM-A135N
SAR 0.38 W/kg (head)     0.49 W/kg (head)    
SAR EU 0.48 W/kg (head)     1.13 W/kg (body)     0.37 W/kg (head)     1.39 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66 1, 3, 5, 7, 8, 20, 28, 38, 40, 41
Speed HSPA, LTE HSPA, LTE
Technology GSM / HSPA / LTE GSM / HSPA / LTE
Platform
Chipset Exynos 9611 (10 nm) Exynos 850 (8 nm)
CPU Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) Octa-core (4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55)
GPU Mali-G72 MP3 Mali-G52
OS Android 10, One UI 2.5 Android 12, upgradable to Android 13, One UI 5.1
Selfie camera
Features HDR -
Single 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm 8 MP, f/2.2, (wide)
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes
Tests
Battery (old) - Endurance rating 114h
Camera - Photo / Video
Display - 1324:1 contrast ratio, 587 nits max brightness (measured)
Loudspeaker - -29.7 LUFS (Average)
Performance - AnTuTu: 122822 (v8), 136286 (v9) GeekBench: 588 (v5.1) GFXBench: 5.2fps (ES 3.1 onscreen)