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Redmi K40 Galaxy A51

Redmi K40
ACorner A
Redmi K40
Redmi · Phones
Swap
VS
Galaxy A51
BCorner B
Galaxy A51
Samsung · Phones
1,125 SARiOfficial prices are from the manufacturer. Estimated prices are based on average prices from Amazon, Noon, Alibaba, and eXtra in the Saudi market.
Swap
Wins by spec 6 A rows 2 B rows 6 ties

Key differences

At a glance
ARedmi K40 Released: Feb 2021 vs Dec 2019
ARedmi K40 Display Size: 6.67" vs 6.5"
ARedmi K40 RAM: 6GB vs 4GB
BGalaxy A51 Front Camera: 32MP vs 20MP
BGalaxy A51 Weight: 172g vs 196g
=Even on: Price — 3,350 – 4,550 SAR vs —

Comparing Redmi K40 vs Galaxy A51? We've got the full breakdown: specs, real Saudi market prices, and key differences — all side by side so you can pick the right one.

01Price

2 rows
Released
WIN Feb 2021
Dec 2019
Price
3,350 – 4,550 SAR
—
Released
A WIN Feb 2021
B Dec 2019
Price
A 3,350 – 4,550 SAR
B —

02Display

3 rows
Display Size in
WIN 6.67"
6.5"
Resolution px
1080x2400
1080x2400
Refresh Rate Hz
WIN 120Hz
60Hz
Display Sizein
A WIN 6.67"
B 6.5"
Resolutionpx
A 1080x2400
B 1080x2400
Refresh RateHz
A WIN 120Hz
B 60Hz

03Performance

3 rows
RAM GB
WIN 6GB
4GB
Processor
Qualcomm Snapdragon 870
Exynos 9611 (2.3GHz)
Storage GB
WIN 128GB
64GB
RAMGB
A WIN 6GB
B 4GB
Processor
A Qualcomm Snapdragon 870
B Exynos 9611 (2.3GHz)
StorageGB
A WIN 128GB
B 64GB

04Battery

1 rows
Battery mAh
WIN 4,520mAh
4,000mAh
BatterymAh
A WIN 4,520mAh
B 4,000mAh

05Camera

2 rows
Main Camera MP
48MP
48MP
Front Camera MP
20MP
WIN 32MP
Main CameraMP
A 48MP
B 48MP
Front CameraMP
A 20MP
B WIN 32MP

06Design

2 rows
Weight g
196g
WIN 172g
Water Resistance
IP53
None
Weightg
A 196g
B WIN 172g
Water Resistance
A IP53
B None

07Software

1 rows
OS
Android 11 (MIUI)
Android 10
OS
A Android 11 (MIUI)
B Android 10

Redmi K40 leads Galaxy A51 on 6 specs vs 2. Check the full table and decide based on the specs that matter most to you.

Redmi K40 vs Galaxy A51 — display, performance, cameras, battery, price, and key differences. Side by side.

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Saudi Retailer Prices

Galaxy A51
1,125 SAR
1,125 SAR – 1,125 SAR
1 Saudi retailer In stock

Where to buy

Pick a store to see its latest price.

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Prices are estimated average Saudi market prices, reviewed June 2026. Actual prices vary by retailer, storage configuration, warranty, and promotions. Prices shown in Saudi Riyal. iOfficial prices are from the manufacturer. Estimated prices are based on average prices from Amazon, Noon, Alibaba, and eXtra in the Saudi market.