Every caregiver picks a wake device — Apple Watch or iPhone. Both are fully supported, and you can switch any time, even night to night. Choose iPhone and alerts arrive as strong, repeating silent vibrations — designed to wake you without a sound.
Blueprint › Wake Device
• iPhone alerts are silent — they vibrate, they don't play a sound, so they won't wake your partner.
• They're built to keep buzzing to wake you even when the phone is locked and the screen is off.
• Each caregiver picks their own wake device — one of you can wake on a watch while the other wakes on their phone.
• Smart routing uses Apple Watch biometrics, so it's available when every caregiver wakes on a watch; iPhone households use Alternating, Schedule, or All Caregivers — which don't need watch data.
• Have a supported Apple Watch? Either device works — pick whichever you'd rather be woken by. The watch taps your wrist; the phone uses strong silent vibrations. See the watch guides.