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Phone · Samsung · Galaxy A

Galaxy A51

The Samsung Galaxy A51 (model SM A515) debuted in late December 2019 as a cornerstone of Samsung's mid range Galaxy A series. Positioned between entry level budget hardware and upper tier mid rangers like the Galaxy A71, the A51 achieved massive global popularity by bringing flagship inspired design traits to an accessible price point. The phone centers around a 6.5 inch Super AMOLED Infinity O display with an 87.4% screen to body ratio. Internal hardware relies on an Exynos 9611 (10 nm) processor paired with configurations ranging from 4GB to 8GB of RAM and up to 256GB of storage. Originally shipping with Android 10, the device supported long term software upgrades through Android 13 running One UI 5. Designed for media consumers, students, and general users seeking solid display performance without flagship costs, the Galaxy A51 was one of the highest shipping smartphones worldwide following its release. Its quad camera arrangement—led by a 48 MP wide sensor alongside a 12 MP ultrawide and dedicated macro lens—catered to everyday photography. A lightweight plastic housing and a non removable 4000 mAh battery balanced physical ergonomics with all day endurance. Because of its wid…

Specs

Key specifications

Sourced from GSMArena · updated 9/8/2026

Released
2019, December 12. Released 2019, December 16
Display
6.5 inches, 102.0 cm 2 (~87.4% screen-to-body ratio) · Super AMOLED
Resolution
1080 x 2400 pixels, 20:9 ratio (~405 ppi density)
OS
Android 10, upgradable to Android 13, One UI 5
Chipset
Exynos 9611 (10 nm)
CPU
Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
GPU
Mali-G72 MP3
Memory
64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
Main camera
48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP (macro) Auxiliary lens
Selfie camera
32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm
Video
4K@30fps, 1080p@30/120fps; gyro-EIS
Battery
Li-Po 4000 mAh, non-removable
Charging
Endurance rating 86h
Dimensions
158.5 x 73.6 x 7.9 mm (6.24 x 2.90 x 0.31 in)
Weight
172 g (6.07 oz)
Build
Glass front (Gorilla Glass 3), plastic back, plastic frame
SIM
· Nano-SIM · Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
5.0, A2DP, LE
NFC
Yes
USB
USB Type-C 2.0, OTG
Colors
Prism Crush Black, Prism Crush White, Prism Crush Blue, Prism Crush Pink

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