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Compare Xiaomi Redmi K40 Ultra vs Xiaomi Redmi Note 8 2021

Xiaomi Redmi K40 Ultra vs Xiaomi Redmi Note 8 2021 Comparison - Compare Size, Cameras, Specs, Features, Price of Xiaomi Redmi K40 Ultra with Xiaomi Redmi Note 8 2021.

Name Xiaomi Redmi K40 Ultra Xiaomi Redmi Note 8 2021
Xiaomi Redmi K40 Ultra Xiaomi Redmi Note 8 2021
Antutu benchmark 619883 189774
CPU MediaTek Dimensity 1200 MediaTek Helio G85
Diagonal size 6.67 " 6.3 "
Resolution 2400x1080 2340x1080
Multi-touch (number of touches) 10 10
RAM 8 Gb 4 Gb
Bezel-less Yes Yes
ROM 128 GB 64 GB
External memory No MicroSD (TF), supports cards up to 256Gb
Rear camera 64 Mp 48 Mp
Camera Triple Camera Four cameras
Sensor model Sony IMX686 Samsung GM1
dxomark mobile ranking
dxomark (photo)
dxomark (video)
Front (selfie) camera 20 Mp 13 Mp
Battery 5000 mAh 4000 mAh
Wireless charging No No
Network 5 G 4 G
WiFi Yes Yes
Bluetooth Yes Yes
NFC Yes No
Navigation (Positioning) GPS, A-GPS, GLONAS GPS, A-GPS, GLONAS
Notifications Led No Yes
Fingerprint's scanner Yes Yes
Operating system (OS) Android 11 Android 11
Material Plastic frame and glass case Plastic frame and glass case
Weight g 190 g
Dimensions mm 158.3 x 75.3 x 8.4 mm
  Price Notify me when it goes on sale. View all Xiaomi models here
Alternatives to the Xiaomi Redmi K40 Ultra:
Xiaomi Redmi Note 11 8/128GB - Compare
Xiaomi 12 8/256Gb - Compare
Xiaomi 12X 8/256Gb - Compare
Discontinued. View all Xiaomi models here
Alternatives to the Xiaomi Redmi Note 8 2021:
Xiaomi Mi 11 Ultra 8/256Gb - Compare
Xiaomi 11T Pro 12/256GB - Compare
Xiaomi Mi Note 10 Lite 6/128Gb - Compare

Xiaomi Redmi K40 Ultra vs Xiaomi Redmi Note 8 2021: Camera comparison.

In this table, you can compare the Xiaomi Redmi K40 Ultra’s camera vs Xiaomi Redmi Note 8 2021’s camera, see the difference between the 64Mp Sony IMX686 sensor and the 48Mp Samsung GM1 sensor, and understand which camera has the maximum benefits compared to the competitor.

Name Xiaomi Redmi K40 Ultra Xiaomi Redmi Note 8 2021
Rear camera 64 Mp 48 Mp
Sensor model Sony IMX686 Samsung GM1
Flash Dual LED flash
Front (selfie) camera 20 Mp 13 Mp
Flash No No

Xiaomi Redmi K40 Ultra vs Xiaomi Redmi Note 8 2021: battery life comparison.

Below, you can find the last battery life test between the Xiaomi Redmi K40 Ultra vs Xiaomi Redmi Note 8 2021, compare the difference between their batteries when in performance or normal mode, and see what chargers they support.

Name Xiaomi Redmi K40 Ultra Xiaomi Redmi Note 8 2021
Battery 5000 mAh 4000 mAh
Type Non-removable Non-removable
Stand-by time 6-7 days 6-7 days
Battery Life 2-3 days 3-4 days
Working hours in hard mode 8-9 hours 8-9 hours
Talk time 30 hours 30 hours
Fast charging Yes Yes
Wireless charging No No

Xiaomi Redmi K40 Ultra vs Xiaomi Redmi Note 8 2021: Antutu benchmark comparison. Xiaomi Redmi K40 Ultra vs Xiaomi Redmi Note 8 2021: Antutu benchmark comparison.

Xiaomi Redmi K40 Ultra in the AnTuTu benchmark test got 619883 score points which is 226.64% faster than the Xiaomi Redmi Note 8 2021, which got 189774. You can compare its ranking and performance with other models results based on the Antutu test below.

Xiaomi Redmi K40 Ultra
6.67 inches (2400x1080) Curved Glass / Dimensity 1200 / 8Gb / 128GB / 64Mp Sony IMX686 / 5000mAh
On Sale Soon
On Sale Soon
 
Xiaomi Redmi Note 8 2021
6.3 inches (2340x1080) Curved Glass / Helio G85 / 4Gb / 64GB / 48Mp Samsung GM1 / 4000mAh
0.00€
$0.00
 

Xiaomi Redmi K40 Ultra vs Xiaomi Redmi Note 8 2021: Geekbench benchmark comparison.

Xiaomi Redmi K40 Ultra in the Geekbench benchmark tests got a 921 points score in "Single-core" of against the Xiaomi Redmi Note 8 2021 which got 351, it is 162.39% faster. In "Multi-core" score 3255 vs 1256 (159.16% faster). You can compare its ranking and performance with other models results based on the Geekbench test below.

Xiaomi Redmi K40 Ultra
6.67 inches (2400x1080) Curved Glass / Dimensity 1200 / 8Gb / 128GB / 64Mp Sony IMX686 / 5000mAh
On Sale Soon
On Sale Soon
 
Xiaomi Redmi Note 8 2021
6.3 inches (2340x1080) Curved Glass / Helio G85 / 4Gb / 64GB / 48Mp Samsung GM1 / 4000mAh
0.00€
$0.00
 

What is the difference between Xiaomi Redmi K40 Ultra and Xiaomi Redmi Note 8 2021? (compare specs) (which is better)

The main differences, why it is better to choose the Xiaomi Redmi K40 Ultra (advantages)

  • Good performance: Is 226.64% faster in the Antutu test (430109 score difference).
  • Has a higher resolution newer rear camera: 64Mp Sony IMX686 compared to 48Mp Samsung GM1
  • Has a higher resolution front (selfie) camera: 20Mp Samsung S5K3T2 vs 13Mp .
  • NFC supports.
  • Has a higher screen resolution: 2400x1080 vs 2340x1080.
  • More battery capacity: 5000mAh vs 4000mAh (a difference of 1000mAh).

Why it is better not to take Xiaomi Redmi K40 Ultra (disadvantages)

  • Does not have Headphone Jack. Need audio 3.5mm headphone jack adapter

The main differences, why it is better to choose the Xiaomi Redmi Note 8 2021 (advantages)

  • Have headphone Jack. 3.5mm supports.

Why it is better not to take Xiaomi Redmi Note 8 2021 (disadvantages)

  • Does not support NFC.

The advantages of both models

  • Have fast charging supports.
  • Have infrared blaster supports.

Xiaomi Redmi K40 Ultra related comparisons

Xiaomi Redmi Note 8 2021 related comparisons

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