Finally bought Philips Xenium X520 as Newuser1980 suggested. $1280HKD.
Good phone wor.
Phone battery realistically lasted 5 days with normal phone calls & SMS per charge (they advertise 30 days stand by without any calls or any sms send/receive)
One thing about the AAA option though.
Phone doesn't draw power "directly" from the AAA, in fact, the phone acts as a "charger" that transfer power from the AAA into the phone's battery and the phone still uses its own battery for power.
Meaning, if you run your phone battery down to 0%, you still can't make phone calls with just the AAA.
You'll have to use the built-in phone function to "transfer" power from AAA into phone battery before you can use again.
Meaning, if your phone battery is down to 0% and cannot power on, you can't invoke the "transfer" function while the phone is off, so you're still stuck!
My original plan is to put this phone in my car's glove compartment and only use it for emergency, this phone won't do the trick
