A “4K phone” request must identify whether it concerns the display, video recording, playback or an external output. These functions require separate confirmation. This guide verifies no current Phonemax handset against an unspecified complete 4K requirement.
Describe the required result
- Screen: the panel resolution needed to view the task.
- Capture: the required recording resolution, frame rate and file format.
- Playback: the files and application the user must open.
- Output: any documented connection to another display.
Test the actual file workflow
Ask the supplier to confirm the requested function, then use a representative authorized sample. Inspect the resulting file or output in the receiving system. Record settings, app version and the accepted hardware.
Keep camera and screen specifications distinct
The R4-T listing specifies a 540 × 1200 main display and a 64MP main camera. Neither figure establishes a particular 4K recording or external-output mode.
Plan file retention with the free-storage guide. Do not infer supported recording modes from a camera's megapixel number or a chipset capability. No recording, decoding or output-compatibility test is reported here.
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