BLU D440
BLU D440
Top 86%764 points
Top 86%
Top specs and features

BLU D440 review: 53 facts and highlights

1. battery power

1800mAh
Energizer Power Max P16K Pro: 16000mAh

2. total clock speed

4 x 1.5GHz
Meizu Pro 7 Plus 64GB: 10 x 2.6GHz

3. pixel density

245ppi
Sony Xperia H8541: 847ppi

4. screen size

The bigger the screen size is, the better the user experience.
4.5"
Huawei Mate 20 X: 7.2"

5. RAM

1GB
Asus ROG Phone 128GB: 8GB

6. megapixels

5MP
Huawei Mate 20 X: 40 & 20 & 8MP

7. resolution

540 x 960px
Sony Xperia H8541: 2160 x 4320px

8. front camera megapixels

1.3MP
Wiko View2 Pro: 16 & 16MP

9. 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
86% have it

10. weight

145g
Starmobile Uno B208: 68g

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
78% have it

12. internal storage

4GB
Smartisan Nut R1: 1024GB

13. thickness

10.8mm
Asus Zenfone AR 64GB: 4.6mm

14. download speed

21MBits/s
Huawei Mate 20 X: 1200MBits/s

15. has a radio

It works as an FM radio with included headsets
BLU D440
69% have it

16. video recording (main camera)

The maximum resolution available for videos shot with the main camera. Although it may be possible to choose among other frame rates, those recordings usually have lower resolutions.
1080 x 30fps
Asus ROG Phone 128GB: 2160 x 60fps

17. width

67mm
Vertu Signature for Bentley: 42mm

18. height

133mm
Motorola FlipOut: 67mm

19. Bluetooth version

4
Samsung Galaxy S8 Active: 5.1

20. 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))
86% have it

21. semiconductor size

A smaller size indicates that the process to create the chip is newer.
40nm
Huawei Mate 20 X: 7nm

22. upload

5.76MBits/s
Razer Phone 2: 1200MBits/s

23. Is free and open source

Anyone is free to use, copy, study, and change the software in any way, and the source code is openly shared so that people are encouraged to voluntarily improve the design of the software.
BLU D440(Android 4.0–4.0.2 Ice Cream Sandwich (API level 14))
88% have it

24. Allows app installs on the device's external storage

BLU D440(Android 4.0–4.0.2 Ice Cream Sandwich (API level 14))
89% have it

25. Supports Java

BLU D440(Android 4.0–4.0.2 Ice Cream Sandwich (API level 14))
88% have it

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