A device can support 4K output while a specific stream is only available at a lower resolution.
Before the test
List the exact model, player build, login format, start time and expected outcome for HD and 4K streaming. A device can support 4K output while a specific stream is only available at a lower resolution.
During the test
Compare the stream label, TV input mode and available bandwidth. Note one successful case and one problematic case, including time, channel/category and which connection was used.
After the test
Record the support answer, current price, currency, connection count and any app fee. Treating a marketing 8K name as proof every programme is delivered in 8K. Save only necessary details and never expose a password in a public checklist.
What to do next
Open the relevant brand page and check the original supplier information before ordering. For a technical issue, write down the device, player, connection and one reproducible example. For a price question, ask for the full charge in the currency you will pay.