BLU D440O+ Air
Top 86%745 points
Top 86%
Top 79%1,145 points
Top 79%
BLU D440
O+ Air
vs
Top specs and features

BLU D440 vs O+ Air: 63 facts in comparison

1. battery power

11.11% more battery power.
1800mAh
Energizer Power Max P16K Pro: 16000mAh
2000mAh

2. total clock speed

2.27x faster CPU clock speed.
4 x 1.5GHz
Meizu Pro 7 Plus 64GB: 10 x 2.6GHz
8 x 1.7GHz

3. pixel density

20% higher pixel density.
245ppi
Sony Xperia H8541: 847ppi
294ppi

4. screen size

The bigger the screen size is, the better the user experience.
4.5"
Samsung Galaxy J Max: 7"
4"

5. RAM

0MB more RAM memory.
1GB
ZTE Nubia Z18: 8GB
1GB

6. megapixels

2.6x more megapixels (main camera).
5MP
Huawei Mate RS Porsche Design: 40 & 20 & 8MP
13MP

7. resolution

1.93x higher resolution.
540 x 960px
Sony Xperia H8541: 2160 x 4320px
780 x 1280px

8. front camera megapixels

3.85x more megapixels (front camera).
1.3MP
Wiko View2 Pro: 16 & 16MP
5MP

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
O+ Air
85% have it

10. weight

30g lighter.
145g
Garmin Vivosmart 3 (large): 21.5g
115g

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
O+ Air
78% have it

12. thickness

4mm thinner.
10.8mm
Asus Zenfone AR 64GB: 4.6mm
6.8mm

13. has a removable battery

The battery is removable and can be replaced by the user if broken.
BLU D440
O+ Air
39% have it

14. internal storage

4GB more internal storage.
4GB
Xiaomi Mi Mix 2s: 256GB
8GB

15. has stereo speakers

Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
BLU D440
O+ Air
19% have it

16. has USB mass storage support

It can transfer files, music, photos via USB, no need to install additional software.
BLU D440
O+ Air
86% have it

17. has a radio

It works as an FM radio with included headsets
BLU D440
O+ Air
67% have it

18. Supports 4K resolution

Allows you to view in ultra-high definition.
BLU D440
O+ Air(Android 4.4 KitKat (API level 19))
66% have it

19. width

3mm narrower.
67mm
Vertu Signature for Bentley: 42mm
70mm

20. height

10mm shorter.
133mm
Lava Z50: 66.6mm
143mm

21. Bluetooth version

1 newer Bluetooth version.
4
Samsung Galaxy S8 Active: 5.1
3

22. 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))
O+ Air(Android 4.4 KitKat (API level 19))
84% have it

23. Is a multi-user system

BLU D440
O+ Air(Android 4.4 KitKat (API level 19))
74% have it

24. supports two SIM cards

A dual SIM mobile phone can work with two SIM cards at the same time.
BLU D440
O+ Air
52% have it

25. Has offline voice recognition

Offline voice recognition enables you to perform voice actions, like dictating texts or using various voice commands, without an internet connection.
BLU D440
O+ Air(Android 4.4 KitKat (API level 19))
79% have it

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