Doogee S40 Pro vs Doogee S51
| Type | Touch | Touch |
| Waterproofness & dust-resistance | IP68, IP69K | IP68, IP69K |
| Dimensions | 158.20 x 79.40 x 14.10 mm | 167.40 x 81.40 x 14.60 mm |
| Weight | 238.00 g | 266.00 g |
| Display size | 5.45" | 6.00" |
| Display | Color / IPS TFT 16M colors 60 Hz 720 x 1440 px (5.45") 195 ppi | Color / IPS TFT 16M colors 60 Hz 720 x 1440 px (6.00") 268 ppi |
| Display protection | Corning Gorilla Glass Buy screen protector
 | Corning Gorilla Glass Buy screen protector
|
| Additional display |  | |
| Protection of the secondary display | | |
| Talk time (max.) | 3G: 1260 min. (21.0 h) | 3G: 1440 min. (24.0 h) |
| Stand-by (max.) | 3G: 288 h. (12.0 days) | 3G: 360 h. (15.0 days) |
| Playback time (max.) | Audio: 25 h (1.0 days) Video: 8 h (0.3 days) | nd |
| Standard battery | Li-Po 4650 mAhBuy powerbank
| Li-Ion 5180 mAhBuy powerbank
|
| Quick battery charging | | |
| Wireless battery charging | | |
| Internal memory | 64 GB | 64 GB |
| RAM memory | 4 GB | 4 GB |
| Memory cards |  microSD, microSDHC, microSDXC up to 256 GBBuy memory card | microSD, microSDHC, microSDXC up to 512 GBBuy memory card |
| Operating system | Android 10 | Android 12 |
| Processor | MediaTek Helio A25 MT6762D | MediaTek Helio G25 MT6762V |
| Processor clock | 1800 MHz | 2000 MHz |
| GPU | ARM Mali-T880 MP2 | PowerVR GE8320 @650 MHz |
| Touchscreen | | |
| DualSIM | | |
| SIM cards standard | DualSIM(nanoSIM, nanoSIM) | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | dual standby | dual standby |
| Hybrid DualSIM | nanoSIM, microSD | |
| Announced | 3Q 2019 | 3Q 2022 |
| 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, 1800, 900, 800 | FDD LTE: 2600, 2100, 1900, 1800, 1700, 900, 850, 800, 700 TDD LTE: 2600, 2500, 2300, 2100, 1900 |
| Standard 5G |  | |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Camera type | | Standard |
| Photo sensor model | Panasonic GMN34170 | Sony IMX486 |
| Photo matrix | 13 Mpx | 12 Mpx |
| Sensor size | 1/3,06 | 1/2,9 |
| Pixel size | | 1,25 µm |
| Resolution | 3120x4160 px | 4032x3016 px |
| Optical zoom | | |
| Field of view | 86 ° | 90 ° |
| Flash | 2x LED | 4x LED |
| Dual-colour LED flash | | |
| Video resolution | 1920x1080 px | 1920x1080 px |
| Video formats | MPEG4, H.263, H.264 | H.264, H.265, MPEG4 - 30 fps |
| Additional | AF, f/2.8 | AF, f/1.8 |
| Second camera | | |
| Camera type | | Depth of field |
| Photo sensor model | Spico SP0A08 | |
| Photo matrix | 2 Mpx | 2 Mpx |
| Sensor size | 1/1 | 1/5 |
| Pixel size | | 1,75 µm |
| Resolution | 1600x1200 px | |
| Optical zoom | | |
| Number of lenses | | 3 |
| Flash | 2x LED | 4x LED |
| Dual-colour LED flash | | |
| Video formats | MPEG4, H.263, H.264 | H.264, H.265, MPEG4 - 30 fps |
| Additional | - | FF, f/2.4 |
CAMERAS - FRONT
| First camera | | |
| Camera type | | Portrait |
| Photo sensor model | Hynix HI552 | |
| Photo matrix | 5 Mpx | 8 Mpx |
| Pixel size | | 1.12 µm |
| Resolution | 1920x2560 px | 3264x2448 px |
| Optical zoom | | |
| Field of view | 80 ° | 80 ° |
| Flash | | |
| Dual-colour LED flash | | |
| Video resolution | | 1920x1080 px |
| Video formats | MPEG4, H.263, H.264 | H.264, H.265, MPEG4 - 30 fps |
| Additional | f/2.2 | 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 | 42.20 Mbit/s | 42.20 Mbit/s |
| HSUPA | 5.76 Mbit/s | 5.76 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | - | - |
| LTE UP | 51.00 Mbit/s | 51.00 Mbit/s |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v5.0 | 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 | T9 | 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 | AAC, ALAC, AMR, APE, FLAC, M4A, MKA, WAV | AAC, AAC+, ALAC, AMR, APE, FLAC, MID, WAV, eAAC+; MKA |
| 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 | | |