Casio G'zOne Ravine vs Oukitel WP21
| Type | Clamshell | Touch |
| Waterproofness & dust-resistance |  | IP68, IP69K |
| Dimensions | 109.20 x 53.40 x 20.30 mm | 177.30 x 84.30 x 14.80 mm |
| Weight | 130.40 g | 398.00 g |
| Display size | 2.20" | 6.78" |
| Display | Color / TFT 64k colors 240 x 320 px (2.20") 182 ppi | Color / IPS TFT 16M colors 120 Hz 1080 x 2460 px (6.78") 396 ppi |
| Display protection |   | |
| Additional display | Mono / STN 96 x 96 px (1.35") | |
| Protection of the secondary display | | |
| Talk time (max.) | 2G: 290 min. (4.8 h) | 2G: 4110 min. (68.5 h) |
| Stand-by (max.) | 2G: 490 h. (20.4 days) | 3G: 1150 h. (47.9 days) |
| Playback time (max.) | nd | Audio: 35 h (1.5 days) Video: 12 h (0.5 days) |
| Standard battery | Li-Ion 1140 mAhBuy powerbank
| Li-Po 9800 mAhBuy powerbank
|
| Quick battery charging | |  |
| Wireless battery charging | | |
| Phonebook memory | 1000 places | |
| Internal memory | 512 MB | 256 GB |
| RAM memory | 192 MB | 12 GB |
| Memory cards | microSD | microSD, microSDHC, microSDXC up to 1000 GBBuy memory card |
| Operating system | Brew 3.1.5 | Android 12 |
| Processor | - | MediaTek Helio G99 MT6789 |
| Processor clock | - | 2200 MHz |
| GPU | - | ARM Mali-G57 MC2 |
| Touchscreen | | |
| SAR (10g) | 0,81 W/kg | |
| DualSIM | | |
| SIM cards standard | | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | nd | dual standby |
| Hybrid DualSIM | nd | nanoSIM, microSD |
| Announced | | 4Q 2022 |
| Other names | - | - |
| GSM frequencies | | 850 900 1800 1900 |
| UMTS | | 900 2100 |
| LTE standard | | FDD LTE: 2600, 2100, 1800, 900, 850, 800 |
| Standard 5G | | |
| CDMA | 850 1900 CDMA2000 1X | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Camera type | | Standard |
| Photo sensor model | | Sony IMX686 |
| Photo matrix | 3.2 Mpx | 64 Mpx |
| Sensor size | | 1/1,72 |
| Pixel size | | 0,8 µm |
| Resolution | 2048x1536 px | |
| Optical zoom | | |
| Flash | LED | LED |
| Dual-colour LED flash | | |
| Video formats | H.263, MPEG4 | H.264, H.265, MPEG4 - 30 fps |
| Additional | - | AF, f/1.9 |
| Second camera | | |
| Photo sensor model | nd | Sony IMX350 |
| Photo matrix | nd | 20 Mpx |
| Sensor size | nd | 1/2,78 |
| Pixel size | nd | 1 µm |
| Resolution | nd | 5184x3880 px |
| Optical zoom | nd | |
| Flash | nd | LED |
| Dual-colour LED flash | nd | |
| Video formats | nd | H.264, H.265, MPEG4 - 30 fps |
| Additional | nd | FF, f/2.0 |
| Third camera | | |
| Camera type | nd | Macro |
| Photo sensor model | nd | GalaxyCore GC02M2 |
| Photo matrix | nd | 2 Mpx |
| Sensor size | nd | 1/5 |
| Pixel size | nd | 1,75 µm |
| Resolution | nd | 1600x1200 px |
| Optical zoom | nd | |
| Number of lenses | nd | 3 |
| Flash | nd | LED |
| Dual-colour LED flash | nd | |
| Video formats | nd | H.264, H.265, MPEG4 - 30 fps |
| Additional | nd | FF, f/2.4 |
CAMERAS - FRONT
| First camera | | |
| Camera type | nd | Portrait |
| Photo matrix | nd | 16 Mpx |
| Optical zoom | nd | |
| Flash | nd | |
| Dual-colour LED flash | nd | |
| Video formats | nd | H.264, H.265, MPEG4 - 30 fps |
| Additional | nd | FF |
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 |
| HSUPA | | 5.76 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | - |
| LTE UP | | 51.00 Mbit/s |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v2.1 EDR | v5.0 |
| 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 | 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 |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | | |
| MP3 | | |
| Stereo speakers | | 2 |
| Audio Jack | | |
| HD Voice | | |
| Sound formats | AAC, AAC+, AMR, MP4, QCELP, WMA, eAAC+ | AAC, AAC+, AMR, MID, WAV, eAAC+ |
| Polyphony | 64 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 | | |