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BLU D440
Samsung Galaxy Ace Duos S6802
Samsung Galaxy Note 7
Samsung Galaxy Note 8 (Qualcomm Snapdragon 835)
Top 86%764 points
Top 86%
Top 85%800 points
Top 85%
Top 23%4,217 points
Top 23%
Top 8%5,017 points
Top 8%
BLU D440
Samsung Galaxy Ace Duos S6802
Samsung Galaxy Note 7
Samsung Galaxy Note 8 (Qualcomm Snapdragon 835)
Top specs and features

BLU D440 vs Samsung Galaxy Ace Duos S6802 vs Samsung Galaxy Note 7 vs Samsung Galaxy Note 8 (Qualcomm Snapdragon 835): 138 facts in comparison

1. battery power

1800mAh
Energizer Power Max P16K Pro: 16000mAh
1300mAh
3500mAh
3300mAh

2. total clock speed

4 x 1.5GHz
Meizu Pro 7 Plus 64GB: 10 x 2.6GHz
1 x 0.8GHz
8 x 2.3GHz
4 x 2.45GHz & 4 x 1.9GHz(Qualcomm Snapdragon 835)

3. pixel density

245ppi
Sony Xperia H8541: 847ppi
165ppi
518ppi
521ppi

4. screen size

The bigger the screen size is, the better the user experience.
4.5"
Huawei Mate 20 X: 7.2"
3.5"
5.7"
6.3"

5. RAM

1GB
Asus ROG Phone 128GB: 8GB
0.5GB
4GB
6GB

6. megapixels

5MP
Huawei Mate 20 X: 40 & 20 & 8MP
5MP
12MP
12MP & 12MP

7. resolution

540 x 960px
Sony Xperia H8541: 2160 x 4320px
320 x 480px
1440 x 2560px
1440 x 2960px

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
Samsung Galaxy Note 7
Samsung Galaxy Note 8 (Qualcomm Snapdragon 835)
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
Samsung Galaxy Note 7
Samsung Galaxy Note 8 (Qualcomm Snapdragon 835)
41% have it

10. weight

145g
Starmobile Uno B208: 68g
122g
169g
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
Samsung Galaxy Note 7
Samsung Galaxy Note 8 (Qualcomm Snapdragon 835)
78% have it

12. internal storage

4GB
Smartisan Nut R1: 1024GB
3GB
64GB
256GB

13. thickness

10.8mm
Asus Zenfone AR 64GB: 4.6mm
11.5mm
7.9mm
8.6mm

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
Samsung Galaxy Note 7
Samsung Galaxy Note 8 (Qualcomm Snapdragon 835)
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
Samsung Galaxy Note 7
Samsung Galaxy Note 8 (Qualcomm Snapdragon 835)
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
Samsung Galaxy Note 7
Samsung Galaxy Note 8 (Qualcomm Snapdragon 835)
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
Samsung Galaxy Note 7
Samsung Galaxy Note 8 (Qualcomm Snapdragon 835)
14% have it

18. download speed

21MBits/s
Huawei Mate 20 X: 1200MBits/s
7.2MBits/s
600MBits/s
600MBits/s

19. has a radio

It works as an FM radio with included headsets
BLU D440
Samsung Galaxy Ace Duos S6802
Samsung Galaxy Note 7
Samsung Galaxy Note 8 (Qualcomm Snapdragon 835)
69% have it

20. 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
480 x 30fps
2160 x 30fps
2160 x 30fps

21. wireless charging

The manufacturer offers a branded wireless charging kit. To charge the device, you simply put it down on its charging base.
BLU D440
Samsung Galaxy Ace Duos S6802
Samsung Galaxy Note 7
Samsung Galaxy Note 8 (Qualcomm Snapdragon 835)
7% have it

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
Samsung Galaxy Note 7
Samsung Galaxy Note 8 (Qualcomm Snapdragon 835)
30% have it

23. has NFC

NFC (near field communication) allows a device to perform simple wireless transactions.
BLU D440
Samsung Galaxy Ace Duos S6802
Samsung Galaxy Note 7
Samsung Galaxy Note 8 (Qualcomm Snapdragon 835)
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
Samsung Galaxy Note 7
Samsung Galaxy Note 8 (Qualcomm Snapdragon 835)
56% have it

25. width

67mm
Vertu Signature for Bentley: 42mm
61.5mm
73.9mm
74.8mm

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