Kyocera Hydro Air vs Kyocera Gratina KYF42
| Type | Touch | Clamshell |
| Waterproofness & dust-resistance | IP57 | IP55, IP58 |
| Dimensions | 143.80 x 72.90 x 10.90 mm | 112.00 x 51.00 x 17.90 mm |
| Weight | 147.00 g | 125.00 g |
| Display size | 5.00" | 3.40" |
| Display | Color / IPS TFT 16M colors 540 x 960 px (5.00") 220 ppi | Color / TFT 256k colors 480 x 854 px (3.40") 288 ppi |
| Display protection |   | |
| Additional display | | Mono / OLED (0.90") |
| Protection of the secondary display | | |
| Talk time (max.) | 2G: 1020 min. (17.0 h) | 4G: 600 min. (10.0 h) |
| Stand-by (max.) | 2G: 504 h. (21.0 days) | 4G: 450 h. (18.8 days) |
| Standard battery | Li-Ion 2300 mAhBuy powerbank
| Li-Ion 1500 mAhBuy powerbank
|
| Quick battery charging | | |
| Wireless battery charging | | |
| Internal memory | 8 GB | 8 GB |
| RAM memory | 1 GB | 1 GB |
| Memory cards |  microSD, microSDHC up to 32 GBBuy memory card | microSD, microSDHC up to 32 GBBuy memory card |
| Operating system | Android 5.1 Lollipop | - |
| Processor | Qualcomm Snapdragon 410 8916 | Qualcomm 215 |
| Processor clock | 1200 MHz | 1200 MHz |
| GPU | Adreno 306 | Adreno 308 |
| Touchscreen | | |
| DualSIM | | |
| SIM cards standard | SingleSIM(nanoSIM) | SingleSIM(nanoSIM) |
| Announced | 3Q 2015 | 3Q 2021 |
| Other names | C6745 | - |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 1900 | |
| LTE standard | FDD LTE: 1900, 1700, 850, 800 | |
| CDMA | | 850 1900 CDMA2000 1xEV-DO |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Photo matrix | 5 Mpx | 8 Mpx |
| Resolution | 2592x1944 px | 3264x2448 px |
| Optical zoom | | |
| Flash | LED | LED |
| Dual-colour LED flash | | |
| Video resolution | 1280x720 px | 1280x720 px |
| Video formats | MPEG4, H.263, H.264 | H.263, H.264, MPEG4 - 30 fps |
| Additional | - | AF |
CAMERAS - FRONT
| First camera | | |
| Photo matrix | 2 Mpx | nd |
| Resolution | 1600x1200 px | nd |
| Optical zoom | | nd |
| Flash | | nd |
| Dual-colour LED flash | | nd |
| Video formats | MPEG4, H.263, H.264 | nd |
| Additional | - | nd |
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 | 51.00 Mbit/s |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v4.1 LE | v4.2 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | v802.11 b/g/n | v802.11 b/g/n |
| WiFi frequencies | 2,4 GHz | 2,4 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | v2.0 | v2.0 Type-C |
| GPS | | |
| A-GPS | | |
| GLONASS | |  |
| Beidou | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | XT9 | XT9 |
| 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 | |
| HD Voice | | |
| Sound formats | AAC, AAC+, AMR, FLAC, MIDI, OGG, WAV, eAAC+ | AAC, AAC+, AMR, WAV, eAAC+ |
| Polyphony | | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | 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 | | |