Touch bracelets for long-distance couples

What to know before you buy

• Each piece connects to the free totwoo app on the wearer’s phone, and each phone connects to one bracelet — so both of you need your own phone.
• In the app you can choose the light color and vibration for your signals.
• Some listings are a set for two and some are a single piece — the Totwoo product page says which. Totwoo says its styles can be mixed and matched; check compatibility there before pairing a single with one you already own.
• The bracelets are rechargeable and come with a charger; Totwoo says a full charge takes around 60 minutes.