Galaxy A3 (2017) vs Galaxy A51
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Galaxy A3 (2017)
Starting at
£65.21£269.00 new
Galaxy A51
Starting at
£96.95£350.00 newWhat's the difference between the Galaxy A3 (2017) and Galaxy A51?
Galaxy A3 (2017) vs Galaxy A51 comes down to the RAM, battery and screen size. Refurbished, the Galaxy A3 (2017) starts at £65.21, £31.74 less than the Galaxy A51. The Galaxy A51 is the newer model, released in 2019.
Refurbished from
RAM
Battery
Screen size
Main camera
Front camera
- The Galaxy A51 has more RAM: 4 GB vs 2 GB.
- The Galaxy A51 has a bigger battery: 4000 mAh vs 2350 mAh.
- The Galaxy A51 has a bigger screen: 6.5 inch vs 4.7 inch.
Galaxy A3 (2017) vs Galaxy A51 specs
The Galaxy A3 (2017) and Galaxy A51 offer different experiences suited to distinct needs. The Galaxy A3 (2017) is a compact phone with a smaller 4.7 inch screen and 2 GB RAM, ideal if you prefer a device that fits easily in one hand and handles everyday tasks. The Galaxy A51 has a larger 6.5 inch screen with higher resolution and 4 GB RAM, making it more suitable if you want more screen space for media and smoother multitasking. Camera capabilities also differ, with the A51 providing higher megapixel counts on both front and main cameras, supporting more detailed photos. Storage options vary too, with the A51 offering more space for apps and files.
Galaxy A3 (2017) vs Galaxy A51 price
Galaxy A3 (2017) vs Galaxy A51 battery life and software updates
Durability covers software support and basic design elements.
Software Compatibility
This means you will be using versions of Android that are stable but will not receive the newest features or security patches released after their support ended.
Build and Design
Both phones are unlocked and ready to use on any UK network that supports 4G.
Battery
Fast charging
Foldable
Ip rating
Software updates
Year of release
Galaxy A3 (2017) vs Galaxy A51 performance
Chipset
RAM
Galaxy A3 (2017) vs Galaxy A51 screen
Screen quality affects how you view apps, videos and photos. Both phones use Super AMOLED screens, which offer vivid colours and deep blacks. Differences in size and resolution influence the viewing experience.
Screen Size
The Galaxy A3 (2017) has a 4.7 inch display, which suits users who prefer a smaller phone that is easier to use one-handed. The Galaxy A51's 6.5 inch screen provides a larger viewing area, better for watching videos or browsing with more visible content.
Resolution
The Galaxy A3 (2017) has a resolution of 720 by 1280 pixels, which is clear for everyday use but less sharp than the Galaxy A51's 1080 by 2400 pixels. The higher resolution on the A51 means images and text appear crisper, especially noticeable on the larger screen.
Refresh rate
Resolution
Screen size
Screen type
Galaxy A3 (2017) vs Galaxy A51 camera
Camera quality is key for capturing photos and video calls. The Galaxy A51 offers higher megapixel counts on both front and main cameras compared to the Galaxy A3 (2017). This difference impacts photo detail and clarity.
Front Camera
The Galaxy A3 (2017) has an 8 megapixel front camera, which is suitable for video calls and casual selfies. The Galaxy A51's 32 megapixel front camera captures much more detail, making it better if you often take selfies or use video chat with a focus on image quality.
Main Camera
The Galaxy A3 (2017) features a 13 megapixel main camera, good for everyday snapshots. The Galaxy A51's 48 megapixel main camera captures higher detail, which benefits those who want clearer photos or plan to crop images without losing quality.
Front camera
Main camera
Galaxy A3 (2017) vs Galaxy A51 size and design
Other practical differences include storage, SIM options and physical dimensions, all of which affect how the phones fit into daily use and preferences for space and connectivity.
Storage Capacity
The Galaxy A3 (2017) is stocked with 16GB of storage, which suits users with lighter app and media needs. The Galaxy A51 offers larger storage options of 64GB and 128GB, ideal if you keep many apps, photos or videos on your phone.
SIM Card Options
The Galaxy A3 (2017) uses a single physical SIM card, while the Galaxy A51 supports dual physical SIMs. Dual SIM is convenient if you want to manage two phone numbers or plans on one device.
Physical Size and Weight
The Galaxy A3 (2017) measures 135.4 mm in height, 66.2 mm in width, and 7.9 mm in depth, weighing 138 g. Its compact size suits users who prefer a smaller, lighter phone. The Galaxy A51 is larger at 158.5 mm height, 73.6 mm width, and 7.9 mm depth, weighing 172 g, providing a bigger screen at the cost of added size and weight.
Carrier compatibility
Connector
Depth
Height
Mobile network
Release date
SD card slot
SIM card
Weight
Width
Galaxy A3 (2017) or Galaxy A51: which should you buy?
Buy the Galaxy A3 (2017) if
- you want to spend less: it starts at £65.21, £31.74 less than the Galaxy A51
- you want a lighter build (138 g vs 172 g)
Buy the Galaxy A51 if
- you want more RAM (4 GB vs 2 GB)
- you want a bigger battery (4000 mAh vs 2350 mAh)
- you want a bigger screen (6.5 inch vs 4.7 inch)
What our customers say
Customers buying the Galaxy A3 (2017) appreciate its compact size and good condition, often choosing it for simpler everyday use or for younger users. Some mention the battery life and charging speed as slower aspects but overall find the phone satisfactory for the price and size. Many say the phone looks good and works well for basic tasks.
Galaxy A51 customers frequently note the larger screen and ample storage as benefits. Several report the phone looks nearly new even in fair condition, while some mention issues with cleanliness or wear. Battery life is a common point, with users finding it adequate for a day of normal use though sometimes faster draining than expected. The phone's interface and performance receive positive comments, making it suitable for those wanting more power and space.
The Galaxy A3 (2017) suits buyers looking for a smaller, straightforward phone for everyday use or as a first device. The Galaxy A51 is better for users who want a larger screen, more storage, and higher resolution cameras for richer media experiences.
Galaxy A3 (2017) vs Galaxy A51 FAQs
Galaxy A3 (2017) vs Galaxy A51 comes down to the RAM, battery and screen size. The Galaxy A51 has more RAM: 4 GB vs 2 GB. The Galaxy A51 has a bigger battery: 4000 mAh vs 2350 mAh.
The Galaxy A3 (2017) is cheaper refurbished, from £65.21 compared with £96.95 for the Galaxy A51.
The Galaxy A51 has a bigger battery: 4000 mAh vs 2350 mAh.
The Galaxy A51 has a higher-resolution main camera: 48 megapixels vs 13 megapixels.
Updates for the Galaxy A3 (2017) ended in Nov 2020. The Galaxy A51 no longer gets updates.
The Galaxy A51 adds more RAM (4 GB vs 2 GB), a bigger battery (4000 mAh vs 2350 mAh) and a bigger screen (6.5 inch vs 4.7 inch). Refurbished, it costs £31.74 more (from £96.95 vs £65.21).
Refurbished, the Galaxy A3 (2017) comes in 16GB, and the Galaxy A51 in 64GB and 128GB.








