Which drains battery faster? Wifi or LTE?

Discussion in 'iOS 6' started by CharlieBrandt09, Jan 11, 2013.

  1. CharlieBrandt09 macrumors 6502

    CharlieBrandt09

    Joined:
    Feb 28, 2012
    Location:
    Southern NJ
    #1
    At home (surprisingly) I get a really decent LTE signal. Sometimes my home wifi acts up with my iPhone.

    If the battery drain is similar, I'd probably be better off staying on LTE at home if possible.
     
  2. DMH3006 macrumors regular

    Joined:
    Jun 16, 2011
    #2
    Here with WiFi only i can go into the 10h-11h usage range,with data on that falls to around 6h-6h30 usage.
     
  3. Menel macrumors 603

    Menel

    Joined:
    Aug 4, 2011
    Location:
    ATL
    #3
    WIFI drains more.

    Mainly because both are active at the same time. So adding WIFI on top of cellular drains more.

    When you have connection to a WIFI network, your cellular/LTE network doesn't cease. Phone calls, push notifications, sms all still come through the cellular link.

    I would fix the solution. Backups only happen when you have wifi + charger. More data is used for music, app store, etc when on cellular.

    New router time?
     
  4. CharlieBrandt09 thread starter macrumors 6502

    CharlieBrandt09

    Joined:
    Feb 28, 2012
    Location:
    Southern NJ
    #4
    I dunno. My router is pretty nice. It works perfectly with my laptop, iMac, iPad PS3 and my Marantz Receiver.

    Seems to hiccup with only the iPhone.
     
  5. Small White Car macrumors G4

    Small White Car

    Joined:
    Aug 29, 2006
    Location:
    Washington DC
    #5
    What? No, none of this is true. You can test it yourself.

    Try these:

    1) Turn off cellular data on your iPhone. Call it. The call comes through just fine.

    2) Then have someone text you while cellular data is off. It comes through too.

    3) Then turn on airplane mode and then turn wifi on. See your push notifications still come through.

    NONE of those things are solely dependent on the cellular data network, so I don't see why the LTE radio would need to stay active while you're on wifi.
     
  6. HankHowdy macrumors 68040

    HankHowdy

    Joined:
    Dec 2, 2012
    Location:
    Victorville CA
    #6
    This is really wrong.

    You will always get better battery life if the wifi radio is connected. When wifi is not available turn off the wifi radio and that will also help out the battery.
     
  7. BlaqkAudio macrumors 6502

    Joined:
    Jun 24, 2008
    Location:
    New York
    #7
    This is completely false. When you're connected to WiFi, calls/texts get routed through 3G and all data is routed through WiFi. Your LTE connection is idle.
     
  8. blackhand1001 macrumors 68030

    blackhand1001

    Joined:
    Jan 6, 2009
    #8
    No wifi drains less. When a phone has a wifi connection it turns the lte modem to a low power mode that uses a lot less power than it normally would. Trust me you'll get less battery while using lte or 3g.
     
  9. Yujenisis macrumors 6502

    Joined:
    May 30, 2002
    #9
    WiFi is more efficient than 3G or LTE. According to this study, Wi-Fi is most efficient, followed by LTE, followed by 3G.
     
  10. teknikal90 macrumors 68030

    teknikal90

    Joined:
    Jan 28, 2008
    Location:
    Vancouver, BC
    #10
    yeah, youre wrong...geez
     
  11. cheezeit macrumors 6502

    Joined:
    Jul 10, 2010
    Location:
    Dallas, TX
    #11
    Yup. LTE drains like crazy. But it also depends on cell signal as well.
     
  12. VTECaddict macrumors 6502

    Joined:
    Sep 15, 2008
  13. HankHowdy macrumors 68040

    HankHowdy

    Joined:
    Dec 2, 2012
    Location:
    Victorville CA
    #13
    Funny how it took so many people to say the same thing. :)
     
  14. throAU macrumors 601

    throAU

    Joined:
    Feb 13, 2012
    Location:
    Perth, Western Australia
    #14
    It depends on the situation:

    - wifi on, in range of AP and connected = less than LTE
    - wifi on, not connected to AP - wifi will be looking for a network to connect to constantly, chewing battery
    - wifi off, bad LTE signal - LTE will chew lots of battery constantly trying to find a better tower to jump to - if you were on wifi it could do push sync over wifi instead which would take less power


    short story is this:

    - if you know you are not connected to wifi and will not be in the near future, turn wifi off
    - if you know there is no LTE in your area, turn LTE off - otherwise it will constantly be searching for LTE, and searching for a cell uses a lot more power than when it is sitting on one.
    - if you know there is wifi available, connect to it and do push sync/browsing/etc over wifi instead - it uses less power.
     
  15. Baggio macrumors 6502

    Joined:
    Oct 18, 2012
    #15
    Bluetooth drains the most for me. WiFi will get slightly better battery life than LTE. But, LTE can drain the batter faster when the signal is weak. WiFi does not seem to have any extra drain by leaving it on when not connected to a WiFi network.
     
  16. Jumpie macrumors 6502a

    Jumpie

    Joined:
    Jul 7, 2008
    Location:
    Atlanta
    #16
    It also depends on signal strength you have on LTE. Full bars, better battery life. Poorer signal, worse life.
     
  17. HankHowdy macrumors 68040

    HankHowdy

    Joined:
    Dec 2, 2012
    Location:
    Victorville CA
  18. adam044 macrumors 65816

    adam044

    Joined:
    Jan 24, 2012
    Location:
    Boston
    #18
    Same here, on WIFI my battery will last forever LTE/4G it's about half or usually less
     
  19. Knockoutjosie macrumors 6502

    Knockoutjosie

    Joined:
    Nov 3, 2012
    #19
    What about if I have 1-2 bars and wifi on? Will that impact my battery?
     

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