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Glossary

Bluetooth

Short-range wireless for headphones, watches and accessories. Newer versions improve range, power use and audio features.

Bluetooth connects earbuds, speakers, watches and other accessories. Newer versions (5.3, 5.4, 6.0) use less power and add features like LE Audio. Audio quality also depends on the codec both devices support (AAC, aptX, LDAC, LC3).

Also called: bt, le audio, aptx, ldac

More terms

OIS (optical image stabilisation)A moving lens or sensor that cancels hand shake — sharper night photos and steadier video.Announced vs releasedAnnounced = the day the maker revealed the phone. Released = the day it went on sale (often a few weeks later).Laptop battery (Wh)Laptop batteries are rated in watt-hours. Most laptops are 40–100 Wh; airlines allow up to 100 Wh without approval.Stereo speakersTwo speakers (usually top and bottom) for left/right sound in videos and games.Titanium / aluminium frameThe phone's metal side frame. Titanium is strong and light; aluminium is light and cheaper.Power supply (PSU)Converts mains power for the PC. Graphics card makers state a recommended PSU wattage.

All glossary terms