Samsung Galaxy A40 vs Samsung Galaxy A90 5G

Our Verdict: This pair separates around the larger 6.7" screen, the larger 4,500mAh battery, and a higher-resolution 48MP rear camera, where Samsung Galaxy A90 5G comes out ahead. The case for Samsung Galaxy A40 is the sharper 437 PPI display, the lighter 140g body, and an IP68 rating. For cost, Samsung Galaxy A40 starts lower at £59.99 SIM-free. Samsung Galaxy A90 5G also adds 5G connectivity, which may matter if you plan to keep the phone for several years. Choose Samsung Galaxy A90 5G for the better feature set; choose Samsung Galaxy A40 if the savings matter more than those upgrades.

If you'd rather pay up front, the A40 is the cheaper buy at £60 SIM-free.

Screen
5.9" 6.7"
Display
AMOLED Super AMOLED
Resolution
1080 x 2340 1080 x 2400
Pixels Per Inch
437 393
Rear Camera
16 Megapixels 48 Megapixels
Front Camera
25 Megapixels 32 Megapixels
Chipset
Exynos 7885 Qualcomm SDM855 Snapdragon 855
Battery
3,100 mAh 4,500 mAh
Storage
64GB 128GB
OS
Android Android
SIM Type
Nano SIM Nano SIM
Connectivity
Up to 4G Up to 5G
Wi-Fi
802.11 a/b/g/n/ac 802.11 a/b/g/n/ac
Bluetooth
5.0 with A2DP, LE 5.0 with A2DP, LE
Dimensions
144.4 x 69.2 x 7.9 mm 164.8 x 76.4 x 8.4 mm
Weight
140 grams 206 grams
Water Resistance
IP68 - Dust and water resistant over 1.5 meter and 30 minutes Not rated
Contracts
- -
SIM-free
£59.95 £179.99

Prices updated 13 August 2026

Samsung Galaxy A40 Samsung Galaxy A40 Samsung Galaxy A90 5G Samsung Galaxy A90 5G
Screen 5.9" 6.7"
Display AMOLED Super AMOLED
Resolution 1080 x 2340 1080 x 2400
Pixels Per Inch 437 393
Rear Camera 16 Megapixels 48 Megapixels
Front Camera 25 Megapixels 32 Megapixels
Chipset Exynos 7885 Qualcomm SDM855 Snapdragon 855
Battery 3,100 mAh 4,500 mAh
Storage 64GB 128GB
OS Android Android
SIM Type Nano SIM Nano SIM
Connectivity Up to 4G Up to 5G
Wi-Fi 802.11 a/b/g/n/ac 802.11 a/b/g/n/ac
Bluetooth 5.0 with A2DP, LE 5.0 with A2DP, LE
Dimensions 144.4 x 69.2 x 7.9 mm 164.8 x 76.4 x 8.4 mm
Weight 140 grams 206 grams
Water Resistance IP68 - Dust and water resistant over 1.5 meter and 30 minutes Not rated
Contracts - -
SIM-free £59.95 £179.99
Prices updated 13 August 2026
Deals Deals

Cheapest Deals

Samsung Galaxy A40
Samsung Galaxy A40

64GB

Coral

Refurbished

From £59.95

Samsung Galaxy A90 5G
Samsung Galaxy A90 5G

128GB

Black

Refurbished

From £179.99

Frequently Asked Questions

Which has the better screen, the Samsung Galaxy A40 or Samsung Galaxy A90 5G?

The Samsung Galaxy A90 5G has the bigger screen at 6.7" compared to the Samsung Galaxy A40's 5.9", the Samsung Galaxy A40 has the sharper display at 437 pixels per inch versus 393, and the Samsung Galaxy A40 uses a AMOLED panel while the Samsung Galaxy A90 5G has a Super AMOLED.

Which has the better camera, the Samsung Galaxy A40 or Samsung Galaxy A90 5G?

The Samsung Galaxy A40 features a 16 Megapixels rear camera, while the Samsung Galaxy A90 5G has a 48 Megapixels rear camera. Both devices also have front-facing cameras for selfies and video calls.

Which is cheaper to buy SIM-free, the Samsung Galaxy A40 or Samsung Galaxy A90 5G?

The Samsung Galaxy A40 is cheaper SIM-free, starting from £59.95.

What storage options are available for the Samsung Galaxy A40 and Samsung Galaxy A90 5G?

The Samsung Galaxy A40 is available in 64GB, while the Samsung Galaxy A90 5G comes in 128GB.

What processors do the Samsung Galaxy A40 and Samsung Galaxy A90 5G use?

The Samsung Galaxy A40 is powered by the Exynos 7885, while the Samsung Galaxy A90 5G uses the Qualcomm SDM855 Snapdragon 855.

Which is easier to carry and hold, the Samsung Galaxy A40 or Samsung Galaxy A90 5G?

The Samsung Galaxy A40 is the more portable of the two: it's 66g lighter at 140 grams, it's also the more compact phone at 144.4 x 69.2 x 7.9 mm, and is slimmer at 7.9mm thick.

Which is more water resistant, the Samsung Galaxy A40 or Samsung Galaxy A90 5G?

The Samsung Galaxy A40 is rated IP68 - Dust and water resistant over 1.5 meter and 30 minutes, while the Samsung Galaxy A90 5G is rated Not rated.

What operating system do the Samsung Galaxy A40 and Samsung Galaxy A90 5G run?

Both phones run Android.