Table of Contents
Kyocera GRATINA KYF44
A model targeted towards corporate users for KDDI. This model has a version with the camera removed as well as the SD card slot disabled. This phone also features the same SoC as the Kyocera DIGNO Keitai 4, but seems to have the body of the Kyocera GRATINA KYF42. Due to the SoC it may be possible to root the phone with MTKClient or by other means.
Specs
| Phone | KYF441 | KYF44 (no camera/SD card)2 |
|---|---|---|
| CPU | MediaTek Helio A22 2.0GHz quad-core (one core is disabled) | |
| RAM | 1 GB | |
| Internal storage | 8 GB | |
| External storage | microSDHC officially supporting up to 32 GB | SD card slot disabled |
| Battery | 1,500mAh (removable) | |
| Battery model | KYF36UAA | |
| Primary display | 3.4“ TFT 854×480 | |
| External display | 0.9” OLED | |
| Camera | 8MP | None |
| Operating system | ? | |
| Durability ratings | IPX5/IPX8/IP5X, MIL-STD-810H | |
| Dimensions | 51×112×17.9mm | |
| Release date | August 1st, 20243 | |
| Colors | Black | |
Connectivity
Main article: Cellular bands
| Radios4 | |
|---|---|
| 4G bands (LTE) | 1, 3, 18 |
| 3G bands (W-CDMA) | 1 |
| 2G bands (GSM) | Unknown |
Audio over USB-C
The USB port on the device exclusively uses “Audio Accessory Mode” for audio, which only allows audio as an analog signal8. This boils down to the device not supporting audio cables that have a DAC (Digital-to-Analog Converter) anywhere within them. Many USB-C to 3.5mm adapters have a DAC built into them, and will not function. Adapters of without DACs may be found online, but may not advertise this.
Inline remotes have yet to be tested.
Operating system
Kyocera releases source code for the kernel and open source components of the operating system. Both models seem to use the same version codes and updates.
Updates
| Versions9 |
|---|
| 1.003HA 1.011HA |
Third-party applications
Main article: Third party apps
Notes
Desktop holder model number: KYF39PUA10.
Guides
Link relevant guides
Official pages
| Phone | KYF44 | KYF44 (no camera/SD card) |
|---|---|---|
| Product pages | Kyocera page KDDI page | |
| Kyocera page | ||
| Manuals | Kyocera catalog (Japanese) au manual (English) au manual (Japanese) | |
| Specs | KDDI page | |