Apple Watch staying locked when on wrist

If you do not have a wrist tattoo (which can affect the performance of the sensor) and the issue persists, I suggest that you contact Apple Support or make a Genius Bar reservation with a view to having your watch checked (under warranty, if eligible):

Contact - Official Apple Support

https://twitter.com/applesupport

http://www.apple.com/retail/geniusbar/

To check your warranty status (requires the serial number from the back of your watch):

https://checkcoverage.apple.com/

Hi

You may be referring to this process: turn both devices off together, then restart your iPhone first.

However, it should not be necessary to keep restarting your devices in order for your watch not to keep locking whilst being worn.

Check that Wrist Detection is turned on:

- On your iPhone, in the Watch app, go to: My Watch > General > Wrist Detection.

Also check that you are wearing your watch sufficiently snugly on the top of your wrist:

Hi,

When you say you, "disconnected watch from phone" does that mean you un paired then re paired ?

If not, try that > Unpair your Apple Watch and iPhone - Apple Support

Make sure your watch fits snug but not tight on your wrist.

Some Apple Watch users are having success by turning off Wi-Fi then turning it back on.

Instructions here > http://www.smartwatchart.com/2015/05/fix-apple-watch-keeps-locking-with-passcode -turned-on.html

Nor should it be necessary to keep unpairing and re-pairing your watch in order for Wrist Detection to work as expected.

As previously advised, if the issue persists, arrange for your watch to be checked by Apple.