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BLU D440
Samsung Galaxy Ace Duos S6802
Sony Xperia XZ Premium
Top 86%780 points
Top 86%
Top 86%814 points
Top 86%
Top 26%4,182 points
Top 26%
BLU D440
Samsung Galaxy Ace Duos S6802
Sony Xperia XZ Premium
Top specs and features

BLU D440 vs Samsung Galaxy Ace Duos S6802 vs Sony Xperia XZ Premium: 103 facts in comparison

1. battery power

1800mAh
Energizer Power Max P16K Pro: 16000mAh
1300mAh
3230mAh

2. total clock speed

4 x 1.5GHz
Meizu Pro 7 Plus 64GB: 10 x 2.6GHz
1 x 0.8GHz
8 x 2.45GHz

3. pixel density

245ppi
Sony Xperia H8541: 847ppi
165ppi
801ppi

4. screen size

The bigger the screen size is, the better the user experience.
4.5"
Samsung Galaxy J Max: 7"
3.5"
5.5"

5. RAM

1GB
Samsung Galaxy Note 9 (Qualcomm Snapdragon 845): 8GB
0.5GB
4GB

6. megapixels

5MP
Huawei Mate RS Porsche Design: 40 & 20 & 8MP
5MP
19MP

7. resolution

540 x 960px
Sony Xperia H8541: 2160 x 4320px
320 x 480px
2160 x 3840px

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
Samsung Galaxy Ace Duos S6802
Sony Xperia XZ Premium
86% 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
Samsung Galaxy Ace Duos S6802
Sony Xperia XZ Premium
40% have it

10. weight

145g
Starmobile Uno B208: 68g
122g
195g

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
Samsung Galaxy Ace Duos S6802
Sony Xperia XZ Premium
78% have it

12. thickness

10.8mm
Asus Zenfone AR 64GB: 4.6mm
11.5mm
7.9mm

13. internal storage

4GB
Smartisan Nut R1: 1024GB
3GB
64GB

14. Is dustproof and water resistant

Dustproof/water resistant at depth equal to or greater than 1 meter.
BLU D440
Samsung Galaxy Ace Duos S6802
Sony Xperia XZ Premium
9% have it

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
Samsung Galaxy Ace Duos S6802
Sony Xperia XZ Premium
19% have it

16. has a removable battery

The battery is removable and can be replaced by the user if broken.
BLU D440
Samsung Galaxy Ace Duos S6802
Sony Xperia XZ Premium
37% have it

17. has built-in optical image stabilization

Optical image stabilization uses gyroscopic sensors to detect the vibrations of the camera. The lens adjusts the optical path accordingly, ensuring that any type of motion blur is corrected before the sensor captures the image.
BLU D440
Samsung Galaxy Ace Duos S6802
Sony Xperia XZ Premium
14% have it

18. download speed

21MBits/s
Huawei Nova 3 (128GB / 4GB RAM): 1200MBits/s
7.2MBits/s
1024MBits/s

19. has USB mass storage support

It can transfer files, music, photos via USB, no need to install additional software.
BLU D440
Samsung Galaxy Ace Duos S6802
Sony Xperia XZ Premium
86% have it

20. has a radio

It works as an FM radio with included headsets
BLU D440
Samsung Galaxy Ace Duos S6802
Sony Xperia XZ Premium
69% have it

21. 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
Samsung Galaxy Note 9 (Qualcomm Snapdragon 845) 128GB: 2160 x 60fps
480 x 30fps
2160 x 30fps

22. Is DLNA certified

All DLNA certified products are compatible with one another. When different devices are connected to the same network, data can be transferred easily between them.
BLU D440
Samsung Galaxy Ace Duos S6802
Sony Xperia XZ Premium
31% have it

23. has NFC

NFC (near field communication) allows a device to perform simple wireless transactions.
BLU D440
Samsung Galaxy Ace Duos S6802
Sony Xperia XZ Premium
38% have it

24. 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
Samsung Galaxy Ace Duos S6802
Sony Xperia XZ Premium
56% have it

25. width

67mm
Samsung Galaxy Note 9 (Qualcomm Snapdragon 845) 128GB: 8.8mm
61.5mm
77mm

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