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Samsung Galaxy A31 Specs and Price

Samsung Galaxy A31 Specs and Price
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Brand: Samsung
Category: SMARTPHONES
  • Display: 6.4" (1080x2400 pixels)
  • Processor: Helio P65
  • Rear Camera: 48MP
  • RAM: 4-8GB
  • Storage: Android 10, up to Android 12, One UI 4.1
  • OS: 64GB/128GB storage, microSDXC
  • Battery: 5000mAh

Our Rating

The overall rating is based on review by our experts

9
  • Performance 8 / 10
  • Display 10 / 10
  • Camera 9 / 10
  • Battery 10 / 10
  • Build 8 / 10

PROS

  1. Beautiful Super AMOLED display
  2. Excellent battery life (5000mAh)
  3. Decent quad-camera setup
  4. Expandable storage
  5. Affordable price

CONS

  1. Average gaming performance
  2. Plastic build (not premium materials)
  3. No high refresh rate
  4. Low-light camera performance could be better

Samsung Galaxy A31 Review (2020): A Budget Phone with Premium Ambitions

The Samsung Galaxy A31 arrived in 2020 as part of Samsung’s ever-growing Galaxy A lineup, targeting users who wanted premium features without paying flagship prices. Positioned as the successor to the Galaxy A30, this device brought noticeable upgrades in display quality, battery life, and camera capabilities. In a year where mid-range smartphones were becoming increasingly competitive, the Galaxy A31 aimed to stand out with its vibrant Super AMOLED display, large battery, and quad-camera setup. But does it truly deliver on its promise? Let’s dive deep into everything you need to know.    

Design and Build Quality

At first glance, the Galaxy A31 carries a modern and stylish look. Samsung opted for a glossy plastic back with what it calls a “Prism Crush” design, giving the phone a reflective, almost holographic appearance. The device feels lightweight at just 185g and is comfortable to hold for extended periods. Despite being made of plastic, it doesn’t feel cheap, Samsung has done a good job maintaining a premium aesthetic at a budget price.    

Comparison with Samsung Galaxy A32

When compared to its successor, the Galaxy A32, the A31 looks slightly less refined. The A32 features a cleaner camera layout and improved build finesse, while the A31 still uses a more traditional rectangular camera module. However, both devices share similar plastic builds, meaning durability and feel are quite comparable. The A31 still holds its own, especially considering its price point in 2020.    

Display: A True Highlight

One of the biggest selling points of the Galaxy A31 is its stunning display. It features a 6.4-inch Full HD+ Super AMOLED panel with a resolution of 1080 x 2400 pixels. This screen delivers:
  • Deep blacks and vibrant colors
  • Excellent brightness levels
  • Great viewing angles
For streaming videos, browsing, and social media, the display is simply outstanding—especially for a mid-range device in 2020. Samsung’s AMOLED technology gives it a clear edge over many competitors that still used LCD panels at the time.    

Performance and Hardware

Under the hood, the Galaxy A31 is powered by the MediaTek Helio P65 processor, paired with 4GB or 6GB of RAM. What this means in real life:
  • Smooth performance for everyday tasks
  • Handles apps like WhatsApp, Instagram, and YouTube easily
  • Light gaming is fine, but heavy games may struggle
This phone wasn’t designed for hardcore gamers, but for regular users, it delivers a reliable and consistent experience. Storage options include 64GB and 128GB, expandable via microSD up to 512GB—perfect for users who store lots of photos and videos.    

Camera Performance

Samsung equipped the Galaxy A31 with a quad-camera setup, which was quite impressive for its class in 2020. Rear Cameras:
  • 48MP main camera
  • 8MP ultra-wide
  • 5MP macro
  • 5MP depth sensor
Front Camera:
  • 20MP selfie shooter
Real-world performance:
  • Good daylight shots with decent detail
  • Ultra-wide adds versatility
  • Macro lens is fun but limited
  • Low-light performance is average
Overall, the camera system is versatile but not groundbreaking. It’s ideal for casual photography and social media use.    

Battery Life: A Major Strength

Battery life is where the Galaxy A31 truly shines. It packs a massive 5000mAh battery, which was a standout feature at launch. What to expect:
  • Easily lasts a full day (or more) on moderate use
  • Great for streaming, browsing, and gaming
  • 15W fast charging support
For users who prioritize long-lasting battery life, the A31 is one of the best options in its category.    

Software and User Experience

The Galaxy A31 runs on Android 10 with Samsung’s One UI 2.1 out of the box. Samsung’s One UI is known for:
  • Clean interface
  • Smooth navigation
  • Useful features like Dark Mode
The device also received updates up to Android 12, which extends its usability and keeps it relevant for longer.  

Price at Launch (2020)

At launch, the Galaxy A31 was positioned as an affordable mid-range smartphone. Estimated Launch Prices:
  • Nigeria: ₦85,000
  • United States: ~$239
  • United Kingdom: ~£190
  • India: ~₹17,000
These prices made it a very attractive option for budget-conscious buyers looking for premium features.    

Pros and Cons

Pros:
  • Beautiful Super AMOLED display
  • Excellent battery life (5000mAh)
  • Decent quad-camera setup
  • Expandable storage
  • Affordable price
Cons:
  • Average gaming performance
  • Plastic build (not premium materials)
  • No high refresh rate
  • Low-light camera performance could be better
 

Who Should Buy the Galaxy A31?

The Galaxy A31 is perfect for:
  • Students and budget users
  • People who prioritize battery life
  • Users who consume lots of media
  • Anyone looking for a reliable everyday smartphone
However, if you want better performance or a more modern design, you might consider newer models like the Galaxy A32.      

Conclusion

The Samsung Galaxy A31 is a well-rounded mid-range smartphone that delivers excellent value for money in 2020. Its standout display and long-lasting battery make it a strong contender in its category, even if performance and camera capabilities are only average. Samsung clearly focused on what matters most to everyday users, battery, screen, and usability, and the result is a device that feels reliable and enjoyable to use.  

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Full Specifications

LAUNCH

Announced 2020, March 24. Released 2020, April 27
Availability Discontinued

NETWORK

2G Bands GSM 850 / 900 / 1800 / 1900
3G Bands HSDPA 850 / 900 / 1900 / 2100 - SM-A315F HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - SM-A315G
4G Bands 1, 2, 3, 5, 7, 8, 20, 38, 40, 41 - SM-A315F 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 38, 40, 41, 66 - SM-A315G
Speed HSPA, LTE
Technology GSM / HSPA / LTE

DESIGN

Measurements 159.3 x 73.1 x 8.6 mm (6.27 x 2.88 x 0.34 in)
Weight 185 g (6.53 oz)
SIM · Nano-SIM · Nano-SIM + Nano-SIM

DISPLAY

Type Super AMOLED
Size 6.4 inches, 98.9 cm2 (~84.9% screen-to-body ratio)
Resolution 1080 x 2400 pixels, 20:9 ratio (~411 ppi density)

PLATFORM

OS Android 10, upgradable to Android 12, One UI 4.1
Chipset Mediatek MT6768 Helio P65 (12 nm)
CPU Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55)
GPU Mali-G52 MC2

MEMORY

Card Slot microSDXC (dedicated slot)
Internal 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM eMMC 5.1

REAR CAMERA

Quad 48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 123˚, (ultrawide), 1/4.0", 1.12µm 5 MP (macro) Auxiliary lens
Features LED flash, panorama, HDR
Video 1080p@30fps

SELFIE CAMERA

Single 20 MP, f/2.2, (wide)
Video 1080p@30fps

SOUND

Loudspeaker Yes
3.5mm Jack Yes

COMMUNICATION

WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth 5.0, A2DP, LE
Positioning GPS, GLONASS, GALILEO, BDS
NFC Yes (market/region dependent)
Radio FM radio, RDS, recording
USB USB Type-C 2.0, OTG

FEATURES

Sensors Fingerprint (under display, optical), accelerometer, gyro, compass Virtual proximity sensing

BATTERY

Kind Li-Po 5000 mAh
Charging 15W wired

OTHERS

Colors Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White
Models SM-A315F, SM-A315F/DS, SM-A315G/DS, SM-A315G, SM-A315N
SAR 0.49 W/kg (head) 1.68 W/kg (body)

PRICE

Nigeria ₦85,000
UK £190
USA $239
India ₹17,000

EU LABEL

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Disclaimer Note

The reviews, opinions, and information shared on this blog are based on personal experiences, research, and available product details at the time of writing. While we strive to provide accurate and up-to-date information, we cannot guarantee that all specifications, prices, or features remain current.