Samsung Galaxy A51 vs Oppo K15s
Product
Price
250 USD
250 USD
Status
Available
Available
Brand
Samsung Mobile
Oppo Mobiles
Model No
Galaxy A51
PYE130
Launch Date
2019, December 29
2026, October 02
Wikipedia
Technology
GSM / HSPA / LTE
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 900 / 1900 / 2100
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, 8, 28, 34, 38, 39, 40, 41, 42, 48
Speed
HSPA 42.2/5.76 Mbps, LTE-A
HSPA, LTE, 5G
5G bands
1, 3, 5, 8, 28, 38, 40, 41, 48, 77, 78 SA/NSA
Dimensions
158.5 x 73.6 x 7.9 mm (6.24 x 2.90 x 0.31 in)
159.1 x 75.8 x 8.8 mm (6.26 x 2.98 x 0.35 in)
Weight
172 g (6.07 oz)
205 g (7.23 oz)
Build
Glass front (Gorilla Glass 3), plastic back, plastic frame
Glass front, plastic frame, plastic back
IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)
Drop resistant up to 1.8m
SIM
Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
Nano-SIM + Nano-SIM
Colors
Prism Crush Black, Prism Crush White, Prism Crush Blue, Prism Crush Pink
Gray, Purple
Type
Super AMOLED capacitive touchscreen, 16M colors
AMOLED, 1B colors, 120Hz, 800 nits (typ), 1400 nits (peak)
Size
6.5 inches, 102.0 cm2 (~87.4% screen-to-body ratio)
6.57 inches, 105.0 cm2 (~87.1% screen-to-body ratio)
Resolution
1080 x 2400 pixels, 20:9 ratio (~405 ppi density)
1080 x 2372 pixels (~397 ppi density)
OS
Android 10, One UI 2.1
Android 16, ColorOS 16
Chipset
Exynos 9611 (10nm)
Mediatek Dimensity 6360 Max (6 nm)
CPU
Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
Mali-G72 MP3
Mali-G57 MC2
RAM
6GB/8GB
6GB/8GB
Storage
64GB/128GB
UFS 2.0
128GB/256GB
Card Slot
microSDXC (dedicated slot)
microSDXC
Lens 1
48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF
50 MP, f/1.9, 25mm (wide), PDAF
Lens 2
12 MP, f/2.2, 123˚ (ultrawide)
Auxiliary lens
Lens 3
5 MP, f/2.4, (macro)
Lens 4
5 MP, f/2.2, (depth)
Features
LED flash, panorama, HDR
LED flash, HDR, panorama
Video
4K@30fps, 1080p@30/120fps; gyro-EIS
1080p@30/60fps
Lens 1
32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm
8 MP, f/2.1, 25mm (wide)
Features
HDR
Panorama
Video
1080p@30fps
1080p@30fps
Capacity
(Li-Po Non removable), 4000 mAh
Si/C Li-Ion 8000 mAh
Charging
Fast charging 15W
45W wired, 45W UFCS, 45W PPS, 13.5W PD
Reverse wired
Sensors
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
ANT+
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Loudspeaker
Yes
Yes
3.5mm jack
Yes
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
5.0, A2DP, LE
5.4, A2DP, LE, aptX HD
GPS
Yes, with A-GPS, GLONASS, GALILEO, BDS
GPS, GALILEO, GLONASS, BDS, QZSS
NFC
Yes
Yes
Radio
FM radio
USB
2.0, Type-C 1.0 reversible connector, USB On-The-Go
USB Type-C 2.0, OTG
Display
Performance AnTuTu: 113051 (v7), 175363 (v8)
GeekBench: 5401 (v4.4), 1294 (v5.1)
GFXBench: 5.6fps (ES 3.1 onscreen)
Display Contrast ratio: Infinite (nominal)
Camera
Photo / Video
Loudspeaker
-28.6 LUFS (Average)
Audio quality
Noise -93.1dB / Crosstalk -87.3dB
Battery life
Endurance rating 86h