What Do the Check Marks Mean on WhatsApp?
WhatsApp uses checkmarks to show the status of every message you send. One gray checkmark means your message was sent from your phone. Two gray checkmarks mean it was delivered to the other person's phone. Two blue checkmarks mean they've read it. But what happens when your message stays on one gray checkmark for hours? That usually means it never reached them, and the reasons go deeper than a phone being turned off. For families staying connected across countries with unreliable electricity, a stuck checkmark often points to something bigger than a dead battery.