Fantastic festive four

With Christmas just weeks away, here is some top tech to get in the festive spirit.

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1. Festavia string lights, £130, John Lewis These Festavia smart lights will add some serious bling to your Christmas tree.

They can be controlled by a smartphone, changed to any colour in the rainbow and set to automatically come on at night. That will end the need to hunt for the plug under those prickly branches.

2. Santa Tracker app, Apple, Android, free