Android reminders not going off? Check battery
Battery savers are the usual reason Android reminders ring late or not at all. Four settings to check, in the order that fixes most phones.
Huawei or Honor reminders not going off?
Huawei and Honor manage app launches automatically. Switch the app to manual launch, turn off battery optimization and lock it in recents.
iPhone reminders not going off? Check these
On iPhone, reminders go missing because of notification settings, a Focus, Scheduled Summary or silent mode. What to check, and how alarms work on iOS 26.
Location reminders not working? Fix it
Location reminders need location access set to Always, precise location and a big enough radius. How to fix them on Android and iPhone.
Motorola reminders not going off? Fix it
On a Motorola phone, set the app's battery use to Unrestricted, allow lock screen notifications and allow Alarms & reminders so reminders ring.
OnePlus reminders not going off? Fix it
OxygenOS closes background apps. Allow background activity, turn on auto launch and lock the app in recent apps so your reminders ring on time.
OPPO or realme reminders not going off?
ColorOS and realme UI limit background apps. Allow background activity and auto launch, then lock the app in recent apps so reminders ring.
Pixel reminders not going off? Fix it
On a Google Pixel, set the app's battery use to Unrestricted, turn off Pause app activity if unused and allow Alarms & reminders.
Samsung reminders not going off? Fix it
One UI puts background apps to sleep, which delays reminders. Set battery to Unrestricted, add the app to Never sleeping apps and allow exact alarms.
vivo reminders not going off? Fix it
vivo and iQOO phones restrict background power. Allow high background power use, turn on Autostart and lock the app in recents so reminders ring.
Xiaomi, Redmi or POCO reminders not working?
MIUI and HyperOS stop background apps. Turn on Autostart, set Battery saver to No restrictions and lock the app in recent apps so reminders ring.
Help with reminders that don't ring
Phone makers add battery savers that can stop any app from ringing on time. Pick your phone for the settings to change, step by step.