Hello Littleplace. It works great in South Korea. I think it should work everywhere. It depends on the network in the country and the SIM card. The battery lasts forever. I would buy the HN M2 again. Check which network is supported in your travel destination. google "Philippines mobile network". Best regards.

Hello Littleplace, the device works great in Switzerland. I am very satisfied. Unfortunately, I don't live in Asia or the Philippines, so I can't give you an answer. Best regards.

Hello Littleplace, the device works with 100% reliability only if the SIM card is suitable for Internet reception. Greetings!