Unlocked Samsung Galaxy A31 4G 128GB Smartphone


Unlocked Samsung Galaxy A31 4G 128GB Smartphone

This Unlocked Samsung Galaxy 4G A31 is packed full of tech. High-resolution front and rear cameras, a full-HD display, facial recognition, Android operating system and 128GB memory – what more could you want in a smartphone?
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  • Standard delivery availableStandard
  • International delivery not availableInternational
  • Express delivery not availableExpress
Get a smartphone that enhances your lifestyle with the Samsung Galaxy A31. Browse apps, stream audio and video and catch up virtually with loved ones on a stunning 6.4" FHD+ display and enjoy the quad rear-facing cameras and high-resolution 20MP front-facing cameras, capturing every moment with clarity and ease. Featuring an Android 10 operating system, octa-core processor and 128GB expandable storage, this is an unlocked mobile that works for you. Long-lasting, secure and fun, the A31 is ready for whatever life – and you – throw at it.

  • Large 6.4-inch FHD+ Infinity-U display
  • 48MP Standard, 8MP Ultra wide, 5MP Macro and 5MP Depth rear-facing cameras
  • Massive 20MP front-facing camera for high-resolution video calling and photos
  • 128GB included storage, with expandable memory
  • Feel secure with facial recognition and fingerprint unlock
  • 4G, Bluetooth and WiFi compatible
  • Android 10 operating system, with full access to Play Store apps
  • Octa-core processor and 4GB installed RAM
  • Nano SIM technology
Dimensions (L x W x H):

16.5 x 8 x 5 cm

    0.1 kg

Limit of 2 items per customer.

SIM card type
Dual nano-SIM
2x2.0 GHz & 6x1.7 GHz
Rear camera resolution
Quad: 48MP + 8MP + 5MP + 5MP
Front camera resolution
Rear camera flash
LED flash
Battery capacity (mAh)
5000 mAh battery Non-removable Li-Po
Talk time
Up to 33 hours
Additional features
Super AMOLED Infinity-U capacitive touchscreen, 16M colors, Optical in-display Fingerprint Facial Recognition, 15W Fast Charging Dual Nano SIM
2G GSM GSM850, GSM900, DCS1800, PCS1900 3G UMTS B1(2100), B2(1900), B4(AWS), B5(850), B8(900) 4G FDD LTE B1(2100), B2(1900), B3(1800), B4(AWS), B5(850), B7(2600), B8(900), B12(700), B13(700), B17(700), B20(800), B28(700), B66(AWS-3) 4G TDD LTE B38(2600), B40(2300), B41(2500) Bluetooth v5.0 Wi-Fi 802.11 a/b/g/n/ac 2.4G+5GHz WiFi Direct
Installed RAM (GB)
Operating system
Screen size (inches)
6.4 inches
Screen resolution
1080 x 2400 pixels
Battery Charge hours
Up to 103 hours
Country of Manufacture
159.3 x 73.1 x 8.6 mm
Dual SIM
Yes - dual SIM compatible
Headphone Ports
3.5mm Jack
Internal Storage size
Max supported memory card size
up to 512GB Micro SD Card
NFC Yes / No?
Operation System Version
Android 10
Supported Memory card type
Micro SD Card
Video capabilities of both cameras
FHD (1920 x 1080)@30fps
2 year Manufacturers Warranty
185 g
WiFi Hotspot

Dispatch timeframes

We aim to dispatch most orders within 1-2 business days of receiving your order. Some products, like personalised stamps, have a longer dispatch time. Any special dispatch / delivery times will be specified on the product page.

Standard delivery is FREE Australia-wide

The estimated timeframe for standard delivery is 3-10 business days after dispatch. However, please be aware we are currently experiencing significant delays due to the pandemic.

Express Post guarantee suspended

Our Express Post service is still available on certain products and is the prioritised delivery option. However, we can’t guarantee next business day delivery and Express Post parcels could take 5+ days to be delivered on top of dispatch time. See our Coronavirus updates page for more information.

Parcel Locker and Parcel Collect deliveries

If you’ve chosen to have your order sent to a Parcel Locker or Parcel Collect address, you’ll receive an SMS and/or email notifying you when your item is ready to pick up.

International delivery

Not all products are available for international delivery. The delivery time for international orders is typically 10+ business days (excluding any time in customs and delays due to reasons outside of Australia Post’s control). Please be aware we’re experiencing substantial international delays due to the pandemic. For more information on these delays, visit the Coronavirus updates page.

For more information on delivery terms, see our Ts&Cs.


Our returns policy

If there’s a problem with a product you have purchased from our Online Shop, you can return the item within reasonable time after purchase. You can choose between an exchange, repair, replacement or refund.

This includes when a product:

  • is faulty
  • is incorrectly described on our website
  • is different from a sample shown
  • doesn’t do what we said it would, or
  • isn't of acceptable quality.

We don’t offer change-of-mind returns on most of our items, as most of them can’t be resold.

Read our full returns policy.

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*Some products can't be delivered to a Parcel Locker or directly to a Post Office for collection. Available collection options and locations will be shown in the 'Delivery details' section at checkout.