Galaxy A51 vs Galaxy S9
Shop Samsung Galaxy
Galaxy A51
Starting at
£96.95£350.00 new
Galaxy S9
Starting at
£116.50£449.00 newWhat's the difference between the Galaxy A51 and Galaxy S9?
Galaxy A51 vs S9 comes down to the battery, screen size and main camera. Refurbished, the Galaxy A51 starts at £96.95, £19.55 less than the Galaxy S9. The Galaxy A51 is the newer model, released in 2019.
Refurbished from
Battery
Screen size
Main camera
Front camera
Software updates
- The Galaxy A51 has a bigger battery: 4000 mAh vs 3000 mAh.
- The Galaxy A51 has a bigger screen: 6.5 inch vs 5.8 inch.
- The Galaxy A51 has a higher-resolution main camera: 48 megapixels vs 12 megapixels.
Galaxy A51 vs Galaxy S9 specs
The Galaxy A51 and Galaxy S9 differ mainly in screen size and resolution, battery capacity, camera detail, and SIM setup. The Galaxy A51 has a larger 6.5 inch screen with 1080 x 2400 resolution, making it suitable for watching video and browsing with more space. Its bigger 4000 mAh battery supports longer day use. The Galaxy S9 offers a sharper 1440 x 2960 resolution on a smaller 5.8 inch screen, which may appeal if you prefer a more compact device with a crisper display. The A51 has higher megapixel counts on both front and main cameras, suited for capturing more detail. It also supports dual physical SIM cards, while the S9 has a single physical SIM.
Galaxy A51 vs Galaxy S9 price
Colour
Galaxy A51 vs Galaxy S9 battery life and software updates
Battery life and operating system are key durability factors for everyday use. Both phones run Android and have batteries designed for daily needs, but their capacities differ.
Battery Capacity
The Galaxy A51 has a 4000 mAh battery, which generally offers longer use between charges. This suits users who need a full day of moderate to heavy use without topping up. The Galaxy S9 has a 3000 mAh battery, which may require more frequent charging for active users but can be sufficient for lighter daily use.
Operating System Updates
This means both devices will run an earlier Android version, which should still cover essential apps and functions but without the newest features.
Battery
Fast charging
Foldable
Ip rating
Software updates
Wireless charging
Year of release
Galaxy A51 vs Galaxy S9 performance
Chipset
RAM
Galaxy A51 vs Galaxy S9 screen
Screen size and resolution impact how much you see and the sharpness of images. Both phones use Super AMOLED screens, known for vivid colours and deep blacks.
Screen Size
The Galaxy A51 offers a larger 6.5 inch screen, providing more space for watching videos, browsing, and multitasking. This suits users who prefer a bigger display for media and reading. The Galaxy S9 has a smaller 5.8 inch screen, which may appeal to those wanting a phone that fits more easily in the hand or pocket.
Screen Resolution
The Galaxy S9 delivers a sharper 1440 x 2960 resolution, resulting in crisper details and text on its smaller screen. The Galaxy A51 has a 1080 x 2400 resolution, which still provides clear visuals but with less pixel density. Users who prioritise sharpness may prefer the S9, while those wanting more screen space may choose the A51.
Refresh rate
Resolution
Screen size
Screen type
Galaxy A51 vs Galaxy S9 camera
Camera quality affects how much detail you can capture in photos and selfies. Both phones offer capable cameras with differences in megapixels that influence image detail.
Front Camera
The Galaxy A51 has a 32 megapixel front camera, which can capture more detailed selfies and video calls. This suits users who frequently use the front camera for high-quality pictures or social media content. The Galaxy S9 has an 8 megapixel front camera, which performs well for everyday selfies and video chatting.
Main Camera
The Galaxy A51 features a 48 megapixel main camera, allowing for photos with more detail and clarity, especially when zoomed in or cropped. The Galaxy S9 offers a 12 megapixel main camera, which is still capable of producing good quality images for most situations.
Camera type
Front camera
Main camera
Galaxy A51 vs Galaxy S9 size and design
Other features include SIM setup, physical size, and storage options, which influence usability and convenience.
SIM Card Setup
The Galaxy A51 supports dual physical SIM cards, ideal if you want to use two numbers or carriers on one phone. The Galaxy S9 has a single physical SIM card slot, which suits users with one mobile number.
Dimensions and Weight
The Galaxy A51 measures 158.5 mm in height, 73.6 mm in width, and 7.9 mm in depth, weighing 172 g. Its larger screen contributes to a bigger overall size. The Galaxy S9 is smaller at 147.7 mm height, 68.7 mm width, and 8.5 mm depth, weighing 163 g, making it easier to hold with one hand or carry in a pocket.
Storage Options
Both the Galaxy A51 and Galaxy S9 are available with 64GB or 128GB of storage, suitable for storing apps, photos, and media. Both support microSDXC cards to expand storage further.
Network Compatibility
Both phones are unlocked and support 4G networks, giving you flexibility to choose your carrier and good mobile internet speeds.
Carrier compatibility
Connector
Depth
Height
Mobile network
Release date
SD card slot
SIM card
Weight
Width
Galaxy A51 or Galaxy S9: which should you buy?
Buy the Galaxy A51 if
- you want to spend less: it starts at £96.95, £19.55 less than the Galaxy S9
- you want a bigger battery (4000 mAh vs 3000 mAh)
- you want a bigger screen (6.5 inch vs 5.8 inch)
Buy the Galaxy S9 if
- you want a lighter build (163 g vs 172 g)
What our customers say
Customers of the Galaxy A51 often mention that the phone looks nearly new even when described as fair condition, with some noting it has plenty of storage and works perfectly. The larger battery is generally viewed as lasting a full day with normal use, although some find the battery life shorter than expected. A number of users appreciate the camera quality and the interface, while a few report issues with cleanliness or unexpected problems like the phone turning off.
Galaxy S9 customers frequently praise the condition of their phones, many saying they look better than expected for fair or below excellent condition listings. Users appreciate the smooth performance and storage space, with some noting the battery may need topping up by the evening. The screen sharpness is valued, and the phone's more compact size suits those who prefer a smaller device. A few users mention overheating or minor issues but overall find the phones meet their needs well.
Both phones attract users who value good condition refurbished devices with unlocked 4G connectivity. The Galaxy A51 suits those who want a larger screen and higher megapixel cameras, while the Galaxy S9 appeals to users who prefer a sharper display in a smaller, lighter body.
Galaxy A51 vs Galaxy S9 FAQs
Galaxy A51 vs S9 comes down to the battery, screen size and main camera. The Galaxy A51 has a bigger battery: 4000 mAh vs 3000 mAh. The Galaxy A51 has a bigger screen: 6.5 inch vs 5.8 inch.
The Galaxy A51 is cheaper refurbished, from £96.95 compared with £116.50 for the Galaxy S9.
The Galaxy A51 has a bigger battery: 4000 mAh vs 3000 mAh.
The Galaxy A51 has a higher-resolution main camera: 48 megapixels vs 12 megapixels.
The Galaxy A51 no longer gets updates. Updates for the Galaxy S9 ended in Apr 2022.
The Galaxy A51 adds a bigger battery (4000 mAh vs 3000 mAh), a bigger screen (6.5 inch vs 5.8 inch) and a higher-resolution main camera (48 megapixels vs 12 megapixels). Refurbished, it costs £19.55 less (from £96.95 vs £116.50).
Both come in 64GB and 128GB refurbished.
