Huawei U636 vs Huawei P20
| Type | Clamshell | Touch |
| Waterproofness & dust-resistance |  | IP53 |
| Dimensions | 96.50 x 50.00 x 24.50 mm | 149.10 x 70.80 x 7.65 mm |
| Weight | 125.00 g | 165.00 g |
| Display size | 2.20" | 5.80" |
| Display | Color / TFT 256k colors 240 x 320 px (2.20") | Color / IPS TFT 16M colors 1080 x 2244 px (5.80") 429 ppi |
| Display protection |   | |
| Additional display | Color / CSTN 64k colors 96 x 96 px (1.20") | |
| Protection of the secondary display | | |
| Talk time (max.) | 2G: 150 min. (2.5 h) 3G: 120 min. (2.0 h) | 3G: 1200 min. (20.0 h) |
| Stand-by (max.) | 2G: 220 h. (9.2 days) 3G: 200 h. (8.3 days) | 3G: 391 h. (16.3 days) |
| Playback time (max.) | nd | Audio: 76 h (3.2 days) Video: 16 h (0.7 days) |
| Internet browsing time (max.) | nd | 4G: 12 h (0.5 days) |
| Standard battery | Li-Ion 830 mAhBuy powerbank
| Li-Po 3400 mAhBuy powerbank
|
| Quick battery charging | | SuperCharge |
| Wireless battery charging | | |
| Internal memory | 22 MB | 64 GB, 128 GB |
| RAM memory | | 4 GB, 6 GB |
| Memory cards |  SD up to 1 GBBuy memory card | |
| Operating system | - | Android 8.1 Oreo |
| Interface | - | EMUI 8.1 |
| Processor | - | HiSilicon Kirin 970 |
| Processor clock | - | 2360 MHz |
| GPU | - | ARM Mali-G72 MP12 |
| Touchscreen | | |
| DualSIM | | |
| SIM cards standard | | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | nd | dual standby |
| Hybrid DualSIM | nd | |
| Announced | | 1Q 2018 |
| Other names | - | EML-L09; EML-L09C; EML-L29; EML-AL00 |
| GSM frequencies | 900 1800 | 850 900 1800 1900 |
| UMTS | 2100 | 850 900 1700 1900 2100 |
| LTE standard | | FDD LTE: 2600, 2100, 1900, 1800, 1700, 1500, 900, 850, 800, 700 TDD LTE: 2600, 2300, 2100, 1900 |
| CDMA | | 850 |
| Standard TD-SCDMA | | 1900 2000 |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Photo matrix | 1.3 Mpx | 12 Mpx |
| Resolution | 1280x1024 px | 3968x2976 px |
| Optical zoom | | |
| Digital zoom | 4x | |
| Flash | | LED |
| Dual-colour LED flash | | |
| Video resolution | | 3840x2160 px |
| Video formats | | H.263, H.264, MPEG4 - 30 fps |
| Additional | - | FF, Laser AF, EIS, f/1.8 |
| Second camera | | |
| Photo matrix | nd | 20 Mpx |
| Resolution | nd | 5120x3840 px |
| Optical zoom | nd | |
| Flash | nd | |
| Dual-colour LED flash | nd | |
| Video formats | nd | H.263, H.264, MPEG4 - 30 fps |
| Additional | nd | FF, Laser AF, f/1.6 |
CAMERAS - FRONT
| First camera | | |
| Photo matrix | nd | 24 Mpx |
| Resolution | nd | 5632x4224 px |
| Optical zoom | nd | |
| Flash | nd | |
| Dual-colour LED flash | nd | |
| Video formats | nd | H.263, H.264, MPEG4 - 30 fps |
| Additional | nd | 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 | | 42.00 Mbit/s |
| HSUPA | | 5.76 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | 979.00 Mbit/s |
| LTE UP | | - |
| WIMAX+ | | |
| GPRS | class 10 | |
| EDGE | | |
| Bluetooth | v1.1 | v4.2 LE |
| A2DP Profile | | |
| HDMI | | |
| WiFi | | v802.11 a/b/g/n/ac |
| WiFi frequencies | | 2,4 GHz; 5 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | | v3.1 Type-C |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| Galileo | | |
| 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 | | |
| HD Voice | | |
| Sound formats | | 3GP, AAC, AMR, FLAC, MIDI, MP4, OGG, WAV |
| Polyphony | 72 voices | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | MIDP 2.0 | 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 | | |