Turn on WiFi sync for your iOS device to make sure you get backed up and synced more often. Your device will then sync any time it and your computer are on the same local network.
1. Plug your device into your computer (Mac or PC)
2. In iTunes on Mac/Windows, click your device in the top right corner or on the left sidebar
3. Scroll down to the bottom of the Summary tab and check the box for “Sync this iPhone (or iPad) over Wi-Fi”