When evaluating porcelain phones, the primary focus should be on material durability and thermal conductivity. Ensure the casing uses nanocrystalline zirconia ceramics, which offer a hardness of 8.5 on the Mohs scale, making them significantly more scratch-resistant than glass. Verify the heat dissipation efficiency, as ceramic materials generally have better thermal conductivity than plastic, helping the processor maintain peak performance. Additionally, confirm the signal transparency; unlike metal, porcelain/ceramic does not shield radio waves, but the thickness must be optimized to ensure 5G and Qi wireless charging compatibility.