Samsung Galaxy A51 smartphone

Photo: Marcusph via Wikimedia Commons (CC BY-SA 4.0)

Samsung

Samsung Galaxy A51

December 16, 2019 7/10 Rating Updated
In brief: The Samsung Galaxy A51 is a mid-range Android smartphone released in December 2019, known for its vibrant Super AMOLED display and versatile quad-camera system. It aimed to offer advanced features at an accessible price point, making it a popular choice for budget-conscious consumers.
Display6.5" Super AMOLED FHD+
ChipsetExynos 9611
Main CameraQuad 48MP Wide + 12MP Ultrawide + 5MP Macro + 5MP Depth
Battery4000 mAh, 15W Fast Charging
Starting from $79

💰 Samsung Galaxy A51 Price

The Samsung Galaxy A51 lowest price is $79, based on current retailer listings.

📌 Full Specifications

Display

TypeSuper AMOLED, 16M colors
Size6.5 inches, 102.0 cm² (~87.4% screen-to-body ratio)
Resolution1080 x 2400 pixels, 20:9 ratio (~405 ppi density)
ProtectionCorning Gorilla Glass 3
FeaturesInfinity-O Display

Platform

OSAndroid 10, upgradable to Android 13, One UI 5.1
ChipsetExynos 9611 (10 nm)
CPUOcta-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
GPUMali-G72 MP3

Memory

Card slotmicroSDXC (dedicated slot)
Internal64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM

Main Camera

Quad48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF; 12 MP, f/2.2, 123˚ (ultrawide); 5 MP, f/2.4, (macro); 5 MP, f/2.4, (depth)
FeaturesLED flash, panorama, HDR
Video4K@30fps, 1080p@30/120fps; gyro-EIS

Selfie Camera

Single32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm
FeaturesHDR
Video4K@30fps, 1080p@30fps

Battery

TypeLi-Po 4000 mAh, non-removable
Charging15W wired

Body

Dimensions158.5 x 73.6 x 7.9 mm (6.24 x 2.90 x 0.31 in)
Weight172 g (6.07 oz)
BuildGlass front (Gorilla Glass 3), plastic back, plastic frame
SIMSingle SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)

Comms

WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth5.0, A2DP, LE
PositioningGPS, GLONASS, GALILEO, BDS
NFCYes (market/region dependent)
USBUSB Type-C 2.0

Launch

AnnouncedDecember 12, 2019
ReleasedDecember 16, 2019

⚖ Pros & Cons

Pros

  • Excellent Super AMOLED display
  • Good camera quality for its price point
  • Solid battery life
  • Expandable storage
  • 3.5mm headphone jack

Cons

  • Processor can feel slow for daily use and demanding tasks
  • No wireless charging
  • Plastic build quality
  • No official IP rating for water/dust resistance
  • 60Hz refresh rate display (compared to newer phones)
★ Our Verdict

The Samsung Galaxy A51 offered a great display and camera for its price, but its processor often struggled with performance, especially compared to competitors and newer models.

The Samsung Galaxy A51, while a popular mid-range device upon its release, is now several years old. If you're considering it today, it's best suited for light users who prioritize a vibrant display and a decent camera for casual photography over raw performance. Its expandable storage and 3.5mm headphone jack are notable advantages. However, be aware that its Exynos 9611 processor can feel sluggish for multitasking or demanding applications, and it will no longer receive major Android OS updates. For a smoother experience, consider newer alternatives in a similar price bracket, especially if you plan to keep the phone for a few years. It could be a good budget option if found at a significantly reduced price for basic communication and media consumption.

Reviewed by the infozme.com Editorial Team — see how we research & rate phones.

📦 In The Box & Warranty

  • Samsung Galaxy A51 Handset
  • User Manual / Quick Start Guide
  • Warranty Card
  • SIM Ejector Pin
  • Earphones
  • USB Type-C Cable
  • 15W Fast Charger / Power Adapter

Samsung mobile devices typically come with a 1-year limited manufacturer's warranty covering parts, labor, and the original battery.

❓ Questions & Answers

When was the Samsung Galaxy A51 released?

The Samsung Galaxy A51 was officially released on December 16, 2019.

What kind of display does the Samsung Galaxy A51 have?

It features a 6.5-inch Super AMOLED Infinity-O display with a Full HD+ resolution of 1080 x 2400 pixels.

How many cameras does the Samsung Galaxy A51 have?

The Samsung Galaxy A51 is equipped with a quad-camera system on the rear, including a 48MP main sensor, a 12MP ultrawide, a 5MP macro, and a 5MP depth sensor. It also has a 32MP front-facing camera.

Is the Samsung Galaxy A51 5G compatible?

The original Samsung Galaxy A51 (LTE variant) is not 5G compatible. However, Samsung later released separate 5G versions, known as the Galaxy A51 5G and Galaxy A51 5G UW.

Does the Samsung Galaxy A51 have expandable storage?

Yes, the Samsung Galaxy A51 supports expandable storage via a dedicated microSDXC card slot, allowing users to add more storage beyond the internal capacity.

What is the battery capacity of the Samsung Galaxy A51?

The Samsung Galaxy A51 is powered by a non-removable 4000 mAh Li-Po battery and supports 15W wired fast charging.