====== Kyocera GRATINA 4G  ======

The first Android phone made by Kyocera for au[(https://s-max.jp/archives/1683299.html)]. The KYF31 model and it's derivatives only supported 4G, the later KYF34 model added 3G fallback capabilities.

===== Specs =====

^  Phone  ^  KYF31[(https://www.kyocera.co.jp/prdct/telecom/consumer/lineup/kyf31-kyf34/spec/)]  ^  KYF34[(https://www.kyocera.co.jp/prdct/telecom/consumer/lineup/kyf31-kyf34/spec/)]  ^  KYF31U[(https://www.uqwimax.jp/mobile/products/sp/digno_phone/)][(https://games.app-liv.jp/archives/227519)]  ^  KYF31Z[(https://www.dai-one.jp/featurephone/au/kyf31k-c-black/)]  ^
^  CPU  |         	MSM8909 1.1GHz quad core           ||||
^  RAM  |          1 GB         ||||
^  Internal storage  |   8 GB   ||||
^  External storage  |   microSDHC up to 32GB   ||||
^  Battery  |       1500mAh (removable)        ||||
^  Battery model  |  KYF31UAA[(https://cdn-kddi-prod.adobecqms.net/content/dam/au-com/guide/document/kyf34_torisetsu.pdf)][(https://www.au.com/content/dam/au-com/static/designs/app/publish/torisetsu/pdf/gratina4g_basic_e.pdf)]    ||  KYF31UAU[(https://www.uqwimax.jp/mobile/products/sar/digno_phone/digno_phone_manual.pdf)]  | ? |
^  Primary display  |    3.4" FWVGA TFT    ||||
^  External display  |   0.93" 1 color OLED display   ||||
^  Camera  |       8MP CMOS         ||| None |
^  Operating system  |   Android 5.1.1[(https://s-max.jp/archives/1683299.html)]   ||||
^  Durability ratings  |  IPX5/IPX8, IP5X, MIL-STD-810G  ||||
^  Dimensions  |      51×113×16.7mm      ||||
^  Release date  |  February 19, 2016  |  April 21, 2016  |  Late march, 2016  |  ?  |
^  Colors  |   Green, pink, white, black   |  Champagne white, metal black      |  Grey, white  |  Black  |


==== Connectivity ====

{{template>Main|article=networks:Radio bands}}

^  Radios  ^ KYF31[(https://www.au.com/content/dam/au-com/support/service/mobile/procedure/simcard/unlock/compatible_network/images/compatible_network_91c035248a6a9544.pdf)]  ^  KYF34[(https://www.au.com/content/dam/au-com/support/service/mobile/procedure/simcard/unlock/compatible_network/images/compatible_network_91c035248a6a9544.pdf)]  ^  KYF31U  ^  KYF31Z  ^
^  4G bands (LTE)     |  1, 18    ||||
^  3G bands (W-CDMA)  |  None  |  1  |  None  |  None  |
^  2G bands (GSM)     |   Unknown  ||||
  




^  Miscellaneous[(https://www.kyocera.co.jp/prdct/telecom/consumer/lineup/kyf31-kyf34/spec/)]           ^^
^  Calling  | VoLTE         |
^  Wi-Fi  | IEEE802.11b/g/n (2.4GHz only)         |
^  Bluetooth  | 4.1      |
^  Ports  |microUSB[(https://www.au.com/content/dam/au-com/guide/document/kyf34_setting.pdf)]          |
^  Tethering  | Up to ten devices             |
^  Other features  |1seg, infrared sensor, GPS, Osaifu-Keitai[(https://s-max.jp/archives/1683299.html)]|

===== Operating system =====



=== Updates ===



^  Versions  ^
^  Phone  ^
|    |  

===== Third-party applications =====
{{template>Main|article=:Third party apps}}


===== Variants =====

==== KYF31 ====

==== KYF34 ====
au model released later on with the capability to fall back on 3G bands.


==== KYF31U ====
[[wp>UQ mobile]] model marketed as "DIGNO Phone". To avoid confusion when referring to this phone it will should be called the "UQ mobile DIGNO Keitai".

==== KYF31Z ====
This model has very little information available on it besides a mention on the [[wp>KYF31]] Wikipedia page and some mentions in blog posts. The model is allegedly a business oriented model that only comes in black, and loses the camera. 

===== Notes =====
https://lpcwiki.miraheze.org/wiki/Kyocera_KYF31


===== Guides =====


===== Official pages =====

^ Phone ^ KYF31 ^ KYF34 ^ KYF31U ^ KYF31Z ^
^ Product pages | [[https://www.kyocera.co.jp/prdct/telecom/consumer/lineup/kyf31-kyf34/|Kyocera page]] || | |
^ ::: | [[https://web.archive.org/web/20160213235537/http://www.au.kddi.com/mobile/product/featurephone/kyf31/|au KDDI page]] | | [[https://www.uqwimax.jp/mobile/products/sp/digno_phone/|UQmobile page]] [[https://www.kyocera.co.jp/prdct/telecom/consumer/lineup/digno-phone/|Kyocera page]] | |
^ Manuals | [[https://www.au.com/content/dam/au-com/static/designs/app/publish/torisetsu/pdf/gratina4g_basic_e.pdf|au manual (English)]] | [[https://www.au.com/content/dam/au-com/guide/document/kyf34_torisetu.pdf|au manual (Japanese)]] | [[https://www.uqwimax.jp/mobile/products/sar/digno_phone/digno_phone_manual.pdf|UQ mobile manual (Japanese)]] | |
^ Specs | [[https://www.kyocera.co.jp/prdct/telecom/consumer/lineup/kyf31-kyf34/spec/|Kyocera page]] || [[https://www.kyocera.co.jp/prdct/telecom/consumer/lineup/digno-phone/spec/|Kyocera page]] | |