WhatsApp for Motorola Moto G53

The G53's 4GB RAM (some variants) plus Motorola's aggressive memory management closes background apps quickly, so WhatsApp and other apps reload from scratch when you switch back. Go to Settings > Battery > and set WhatsApp to 'Unrestricted' (or Settings > Apps > WhatsApp > Battery > Unrestricted), and turn off any 'Adaptive Battery' / battery saver mode. Restricting the number of background processes in Developer Options to the default 'Standard limit' rather than a lower cap also helps the phone hold sessions in memory. See how others solved this on Reddit

Delayed notifications on the G53 are almost always caused by battery optimization killing WhatsApp in the background. Open Settings > Apps > WhatsApp > Battery and set it to 'Unrestricted', then go to Settings > Battery and disable battery saver and any 'Optimized charging' that throttles apps. Also confirm WhatsApp is allowed to run by checking Settings > Apps > Special app access > and keep the phone off Doze by setting it to Unrestricted background activity. See how others solved this on Reddit

If callers can't hear you but your audio works fine, first check Settings > Apps > WhatsApp > Permissions and make sure the Microphone permission is allowed, then clean the bottom mic hole near the USB-C port since lint or a case often blocks it. Test the hardware by recording a voice memo or video; if the recording is also silent it's a mic fault, but if only calls fail, toggle Bluetooth off (a connected device may be grabbing the mic) and restart the phone. See how others solved this on Reddit

The G53's video mic processing tends to compress and muffle audio, especially in noisy or windy conditions. In the Camera app open Settings (gear icon) and look for any 'Audio zoom' or noise-reduction toggle and turn it off, and make sure no app or case is covering the secondary mic. For important clips, recording with a dedicated app or an external/Bluetooth mic produces noticeably cleaner sound than the built-in capture. See how others solved this on Reddit

The G53 uses an LCD panel that dims via PWM, which some sensitive users find tiring during long messaging sessions. There's no built-in DC dimming toggle, but you can reduce flicker perception by keeping brightness higher and enabling Settings > Display > Dark theme plus the Reading/Comfort color filter to lower blue light. Turning off auto-brightness so the panel doesn't constantly modulate also makes extended WhatsApp use easier on the eyes. See how others solved this on Reddit

The G53 is a solid sub-150 euro pick for messaging and calls, with the main trade-offs being limited RAM and Motorola's background app handling rather than any deal-breaking fault. To get the smoothest WhatsApp experience, keep the system updated via Settings > System > System update, set WhatsApp to Unrestricted battery, and avoid loading many heavy apps at once. For its price it handles chat, photos and video calls well once those battery and memory settings are tuned. See how others solved this on Reddit