Whats better for battery life - push or fetch mail ?

[mappyman]

I'm not sure which one to use for the best battery life push on yahoo or fetch on gmail ?

(We need a battery life logging application.)

 

[GreenLightJerky]

I dont know the answer. I get good battery life with fetch though.

We do need the "usage" screen to give us more detailed information:

- Wifi Time
- Talk Time
- Music
- Games/Video

Something like that. Trying to compare usage person to person is not really accurate at all.

 

[Niiro13]

I think theoretically push should get you better battery life because the iPhone only interacts with the server when the server pushes the message.

Fetch requires the iPhone to ask the server whether there is anything new.

If you only get one message in 24 hours, using fetch at 15 minute intervals means the iPhone establishes a connection 96 times, whilst Push only makes it interact once.

Though I'm not quite certain.

 

[bsdwiz]

battery life

actually, that may not be true. push email actually still needs to poll the server every 29 minutes. so, if you only check for email every half hour it should use the same amount of battery. push email is really just IMAP IDLE. if you want more info i suggest you read the RFC 2177 as that defines "push email" or more accurately IMAP IDLE.