BLU D440Xiaomi Mi 4
Top 85%824 points
Top 85%
Top 48%2,916 points
Top 48%
BLU D440
Xiaomi Mi 4
Top specs and features

BLU D440 vs Xiaomi Mi 4: 82 facts in comparison

1. battery power

1.71x more battery power.
Energizer Power Max P16K Pro: 16000mAh

2. total clock speed

1.67x faster CPU clock speed.
4 x 1.5GHz
Meizu Pro 7 Plus 64GB: 10 x 2.6GHz
4 x 2.5GHz

3. screen size

The bigger the screen size is, the better the user experience.
Samsung Galaxy J Max: 7"

4. RAM

2GB more RAM memory.
Razer Phone: 8GB

5. megapixels

2.6x more megapixels (main camera).
Doogee V: 21 & 21MP

6. resolution

4x higher resolution.
540 x 960px
Sony Xperia XZ Premium: 2160 x 3840px
1080 x 1920px

7. front camera megapixels

6.15x more megapixels (front camera).
Doogee V: 16 & 16MP

8. has an external memory slot

The device has a standard memory slot (such as an SD or micro SD card slot) so that you can either extend the internal storage with affordable memory modules or you can retrieve data, such as photographs, easily from a memory card.
BLU D440
Xiaomi Mi 4
84% have it

9. has branded damage resistant glass

Damage resistant glass (such as Corning Gorilla Glass or Asahi Dragontrail Glass) is thin, lightweight, and can withstand high levels of force.
BLU D440
Xiaomi Mi 4
40% have it

10. weight

4g lighter.
Garmin Vivosmart 3 (large): 21.5g

11. every pixel has three subpixels

The device has a display with three full subpixels per pixel, resulting in a sharp and crisp picture. Pixels in some displays (like AMOLED) share one subpixel to preserve space. This can result in a less crisp, slightly blurred image.
BLU D440
Xiaomi Mi 4
78% have it

12. thickness

1.9mm thinner.
Asus Zenfone AR 64GB: 4.6mm

13. internal storage

60GB more internal storage.
Samsung Galaxy S9 Plus Dual SIM: 256GB

14. has USB mass storage support

It can transfer files, music, photos via USB, no need to install additional software.
BLU D440
Xiaomi Mi 4
88% have it

15. download speed

2.01x faster downloads.
Panasonic Eluga Ray 700: 1500MBits/s

16. has a radio

It works as an FM radio with included headsets
BLU D440
Xiaomi Mi 4
66% have it

17. Supports 4K resolution

Allows you to view in ultra-high definition.
BLU D440
Xiaomi Mi 4(Android 4.4 KitKat (API level 19))
64% have it

18. has an IPS screen

IPS (In-Plane Switching) is a technology used for LCDs. It was designed to overcome the main limitations of normal TFTs TN-matrices: relatively slow response times, small viewing angles and low quality color reproduction.
BLU D440
Xiaomi Mi 4
52% have it

19. width

1.5mm narrower.
Vertu Signature for Bentley: 42mm

20. Has fast 802.11ac WiFi connection

802.11ac wireless works on the 5GHz frequency range. It offers higher transfer rates, improved reliability and improved power consumption. It provides advantages for gaming and HD video streaming.
BLU D440
Xiaomi Mi 4
32% have it

21. height

6.2mm shorter.
Motorola FlipOut: 67mm

22. Bluetooth version

0 newer Bluetooth version.
Samsung Galaxy S8 Active: 5.1

23. The browser has word wrap

The web browser has automatic word wrap when zooming, the user can easily read long lines without scrolling horizontally.
BLU D440(Android 4.0–4.0.2 Ice Cream Sandwich (API level 14))
Xiaomi Mi 4(Android 4.4 KitKat (API level 19))
83% have it

24. Is a multi-user system

BLU D440
Xiaomi Mi 4(Android 4.4 KitKat (API level 19))
73% have it

25. has a BSI sensor

A BSI (backside illuminated) sensor is a camera image sensor which captures better quality images in poor lighting conditions, and offers better overall sharpness and image quality.
BLU D440
Xiaomi Mi 4
33% have it

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