HTC J Butterfly (HTL21)
HTC J Butterfly (HTL21)
Top 83%973 points
Top 83%
Top specs and features

HTC J Butterfly (HTL21) review: 60 facts and highlights

1. battery power

2020mAh
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

440ppi
Sony Xperia H8541: 847ppi

4. screen size

The bigger the screen size is, the better the user experience.
5"
Huawei Honor 8X Max: 7.12"

5. RAM

2GB
Oppo R17 Pro: 8GB

6. megapixels

8.1MP
Huawei Mate RS Porsche Design: 40 & 20 & 8MP

7. front camera megapixels

2MP
Wiko View2 Pro: 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.
HTC J Butterfly (HTL21)
86% have it

9. weight

140g
Starmobile Uno B208: 68g

10. 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.
HTC J Butterfly (HTL21)
78% have it

11. thickness

9.1mm
Asus Zenfone AR 64GB: 4.6mm

12. internal storage

16GB
Smartisan Nut R1: 1024GB

13. has a removable battery

The battery is removable and can be replaced by the user if broken.
HTC J Butterfly (HTL21)
37% have it

14. has a radio

It works as an FM radio with included headsets
HTC J Butterfly (HTL21)
69% have it

15. has NFC

NFC (near field communication) allows a device to perform simple wireless transactions.
HTC J Butterfly (HTL21)
38% have it

16. width

71mm
Samsung Galaxy Note 9 (Qualcomm Snapdragon 845) 128GB: 8.8mm

17. Has a dual-tone LED flash

A dual-tone flash has LED lights with different color temperatures, delivering a better color balance to photos and videos.
HTC J Butterfly (HTL21)
27% have it

18. height

143mm
Motorola FlipOut: 67mm

19. Bluetooth version

4
Samsung Galaxy S8 Active: 5.1

20. number of microphones

More microphones result in better sound quality and enable the device to filter out background noise.
1
Motorola Moto Z3: 4

21. The browser has word wrap

The web browser has automatic word wrap when zooming, the user can easily read long lines without scrolling horizontally.
HTC J Butterfly (HTL21)(Android 4.1 Jelly Bean (API level 16))
85% have it

22. semiconductor size

A smaller size indicates that the process to create the chip is newer.
28nm
Apple iPhone XS Max 64GB: 7nm

23. 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.
HTC J Butterfly (HTL21)(Android 4.1 Jelly Bean (API level 16))
81% have it

24. 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.
HTC J Butterfly (HTL21)(Android 4.1 Jelly Bean (API level 16))
88% have it

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

HTC J Butterfly (HTL21)(Android 4.1 Jelly Bean (API level 16))
89% have it

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