Blackview BV4000 Pro vs Ulefone Armor X12
| Type | Touch | Touch |
| Waterproofness & dust-resistance | IP68 | IP68, IP69K |
| Dimensions | 143.90 x 74.20 x 13.25 mm | 157.19 x 76.80 x 14.34 mm |
| Weight | 205.00 g | 257.00 g |
| Display size | 4.70" | 5.45" |
| Display | Color / IPS TFT 16M colors 720 x 1280 px (4.70") 312 ppi | Color / IPS TFT 16M colors 60 Hz 720 x 1440 px (5.45") 295 ppi |
| Display protection | Corning Gorilla Glass Buy screen protector
 |  |
| Additional display | | |
| Protection of the secondary display | | |
| Talk time (max.) | 2G: 1140 min. (19.0 h) | 4G: 1200 min. (20.0 h) |
| Stand-by (max.) | 2G: 720 h. (30.0 days) | 3G: 264 h. (11.0 days) |
| Playback time (max.) | Audio: 20 h (0.8 days) Video: 8 h (0.3 days) | Video: 8 h (0.3 days) |
| Internet browsing time (max.) | 3G: 13 h (0.5 days) | nd |
| Standard battery | Li-Po 3680 mAhBuy powerbank
| Li-Po 4860 mAhBuy powerbank
|
| Quick battery charging | |  |
| Wireless battery charging | | |
| Internal memory | 16 GB | 32 GB |
| RAM memory | 2 GB | 3 GB |
| Memory cards | microSD, microSDHC up to 32 GBBuy memory card | microSD, microSDHC, microSDXC up to 256 GBBuy memory card |
| Operating system | Android 7.0 Nougat | Android 13 Go |
| Processor | MediaTek MT6580 | MediaTek Helio A22 MT6761 |
| Processor clock | 1300 MHz | 2000 MHz |
| GPU | ARM Mali-400 MP2 500 MHz | PowerVR GE8300 @660 MHz |
| Touchscreen | | |
| DualSIM | | |
| SIM cards standard | DualSIM(microSIM, microSIM) | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | dual standby | dual standby |
| Hybrid DualSIM | | |
| Announced | 4Q 2017 | 3Q 2023 |
| Other names | - | - |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 900 2100 | 850 900 1700 1900 2100 |
| LTE standard | | FDD LTE: 2600, 2100, 1900, 1800, 1700, 900, 850, 800, 700 |
| Standard 5G |  | |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Camera type | | Standard |
| Photo sensor model | | Sony IMX214 |
| Photo matrix | 8 Mpx | 13 Mpx |
| Pixel size | | 1,12 µm |
| Resolution | 3264x2448 px | 4160x3120 px |
| Optical zoom | | |
| Number of lenses | | 5 |
| Field of view | | 81 ° |
| Flash | LED | LED |
| Dual-colour LED flash | | |
| Video resolution | | 1920x1080 px |
| Video formats | MPEG4, H.263, H.264 | H.263, H.264, MPEG4 |
| Additional | f/2.0 | AF, f/2.2 |
| Second camera | | |
| Photo matrix | 8 Mpx | nd |
| Resolution | 3264x2448 px | nd |
| Optical zoom | | nd |
| Flash | LED | nd |
| Dual-colour LED flash | | nd |
| Video formats | MPEG4, H.263, H.264 | nd |
| Additional | - | nd |
CAMERAS - FRONT
| First camera | | |
| Camera type | | Portrait |
| Photo sensor model | | OmniVision OV8856 |
| Photo matrix | 2 Mpx | 8 Mpx |
| Resolution | 1600x1200 px | |
| Optical zoom | | |
| Number of lenses | | 4 |
| Flash | | |
| Dual-colour LED flash | | |
| Video resolution | | 1920x1080 px |
| Video formats | MPEG4, H.263, H.264 | H.263, H.264, MPEG4 |
| Additional | - | FF, f/2.0 |
SENSORS
| Accelerometer | | |
| Proximity | | |
| Light | | |
| Magnetometer | | |
| Gyroscope | | |
| Barometer | | |
| Altimeter | | |
| Gravity | | |
| Hall-effect | | |
| Iris scanner | | |
| Fingerprint scanner | | |
| Thermometer | | |
| Hygrometer | | |
Data transfer
| xHTML | | |
| WAP | v2.0 | v2.0 |
| HSCSD | | |
| HSDPA | | 21.10 Mbit/s |
| HSUPA | | 5.76 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | - |
| LTE UP | | - |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | | v5.0 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | v802.11 b/g/n | v802.11 a/b/g/n/ac |
| WiFi frequencies | 2,4 GHz | 2,4 GHz; 5 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | v2.0 | v2.0 Type-C |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| Galileo | | |
| QZSS | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | XT9 | T9 |
| Swype | | |
| e-mail client | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | | |
| MP3 | | |
| Stereo speakers | | |
| Audio Jack | 3.5 mm | 3.5 mm |
| HD Voice | | |
| Sound formats | AC, AMR, APE, FLAC, M4A, MKA, OGG | AAC, AAC+, AMR, MID, WAV, eAAC+ |
| Polyphony | | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | ART | ART |
| Videophone | | |
| DVB-H television | | |
| TV-Out | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Currency converter | | |
| Organizer | | |
| Calendar | | |
| Flight mode | | |
| SyncML | | |
| Data and fax | | |
| Screensaver | | |
| Themes | | |
| Interchangeable covers | | |
| Voice dial | | |
| Speakerphone | | |
| Recorder | | |
| Vibrations | | |