Phones

Megapixels are the least useful number on a phone camera spec sheet. Here is what to read instead.

Most phone battery advice is outdated. Here is what genuinely degrades a cell and what does not.

Update support is now among the most important phone buying factors, and the least examined.

The mid-range gap has narrowed, but not evenly. Here is what the extra money still buys.

Phone storage usually cannot be changed later. Here is how to size it correctly the first time.

Charge cycles matter less than heat and sustained time at full charge. Here is what genuinely extends the usable life of a phone battery.

Sensor size, optics and processing decide image quality. The megapixel figure on the box is close to meaningless on its own.

Benchmark numbers measure a short burst under ideal thermal conditions. Here is what they do and do not predict about real use.