LG G Flex battery life test

The LG G Flex is an unusual device that brings a lot of innovation in one package. The battery is one – it’s a curved, flexible battery that allows the whole device to be flexed. To make this happen, LG also had to develop a flexible screen – an OLED built on a plastic substrate.

Despite working with such new technology, LG still managed to squeeze a whopping 3,500mAh battery in the G Flex. But with a huge 6″ OLED screen to feed, will it be enough?

Talk time as you can expect is outstanding – the phablet lasted over 25 hours. It couldn’t topple the Sony Xperia Z1 off its perch, but it is ahead of the Huawei Ascend Mate and its 4,050mAh battery. You’ll never be able to deplete the battery just by talking.

Talk time

• Sony Xperia Z1
  26:53
• LG G Flex
  25:19
• Huawei Ascend Mate
  25:12
• LG G2
  25:01
• Oppo N1
  25:01
• Sony Xperia Z Ultra
  24:23
• BlackBerry Z30
  23:19
• Huawei MediaPad 7 Vogue
  22:16
• Nokia Lumia 1020
  22:13
• Motorola RAZR MAXX (ICS)
  21:18
• HTC One Max
  22:13
• LG Optimus G Pro
  20:45
• Motorola DROID RAZR MAXX
  20:24
• Motorola RAZR i
  20:07
• BlackBerry Q10
  20:00
• Samsung Galaxy Mega 6.3
  19:54
• Sony Xperia SP
  19:49
• Samsung Galaxy Note 3
  18:12
• Samsung Galaxy S4 (S600)
  18:03
• Sony Xperia ZR
  17:48
• Samsung Galaxy S4 mini duos
  17:33
• Samsung Galaxy Note II N7100
  16:57
• LG Nexus 5
  16:40
• Samsung Galaxy S4 Active
  16:40
• Sony Xperia Z
  16:03
• Samsung Galaxy S4 zoom
  15:32
• LG Optimus G
  15:30
• Sony Xperia ZL
  15:22
• Nokia Lumia 720
  15:17
• BlackBerry Q5
  14:31
• Huawei Ascend P6
  14:17
• Oppo Find 5
  14:17
• Google Nexus 4
  14:17
• Moto X
  14:06
• HTC One
  13:38
• HTC One X+
  13:31
• Nokia Lumia 520
  13:33
• Sony Xperia C
  13:29
• Samsung Galaxy S4 mini
  13:10
• Samsung Galaxy Grand Duos
  12:45
• LG Optimus GJ
  12:39
• Samsung Galaxy S4 GPE
  12:37
• Huawei Ascend P1
  12:30
• Sony Xperia L
  12:30
• HTC Butterfly
  12:18
• Samsung Galaxy Note
  12:14
• HTC One mini
  12:04
• HTC Desire 600 dual sim
  11:58
• Samsung I8530 Galaxy Beam
  11:58
• Samsung I8262 Galaxy Core
  11:52
• HTC Desire 500
  11:31
• Samsung Galaxy Premier
  11:30
• Asus Padfone 2
  11:20
• Acer Liquid E2
  11:07
• HTC Droid DNA
  11:07
• HTC Windows Phone 8X
  11:07
• Samsung Wave 3 S8600
  11:07
• Samsung I9105 Galaxy S II Plus
  11:06
• HTC Desire X
  11:03
• Meizu MX3
  11:02
• Samsung Galaxy S4 (Octa)
  11:01
• Apple iPhone 5s
  10:46
• HTC One X (AT&T, LTE)
  10:35
• Samsung I9300 Galaxy S III
  10:20
• Apple iPhone 5c
  10:18
• Samsung I9300 Galaxy S III (JB)
  10:15
• Samsung Galaxy Xcover 2
  10:03
• HTC One V
  10:00
• Meizu MX 4-core
  10:00
• Samsung Galaxy Express
  10:00
• HTC One X
  9:57
• HTC One S
  9:42
• Samsung I9103 Galaxy R
  9:40
• Samsung Galaxy Ace 3
  9:32
• HTC Sensation XL
  9:30
• Nokia Lumia 810
  9:05
• Nokia Lumia 710
  9:05
• Acer CloudMobile S500
  9:05
• Motorola Atrix HD
  9:04
• HTC Vivid
  9:02
• Nokia Lumia 920
  8:56
• Nokia Lumia 610
  8:51
• HTC Rhyme
  8:48
• Apple iPhone 5
  8:42
• LG Optimus 3D Max P720
  8:42
• Sony Ericsson Xperia neo V
  8:41
• Meizu MX
  8:39
• Samsung Galaxy S II
  8:35
• Samsung Galaxy S Duos
  8:28
• Nokia Lumia 800
  8:25
• Samsung Galaxy Nexus
  8:23
• Nokia Lumia 510
  8:22
• Samsung Galaxy Fame
  8:21
• BlackBerry Z10
  8:20
• HTC Desire V
  8:20
• Samsung Captivate Glide
  8:20
• Sony Xperia T
  8:15
• HTC Rezound (LTE)
  8:10
• Samsung Galaxy Note (LTE)
  8:02
• LG Optimus Vu
  7:57
• Gigabyte GSmart Maya M1 v2
  7:42
• LG Optimus 4X HD
  7:41
• Apple iPhone 4S
  7:41
• Samsung i937 Focus S
  7:25
• HTC Evo 4G LTE (LTE)
  7:21
• Samsung Galaxy S Blaze 4G
  7:14
• Nokia Lumia 820
  7:09
• Sony Xperia acro S
  7:09
• Samsung Rugby Smart I847
  7:09
• Sony Ericsson Xperia Pro
  6:57
• Nokia N9
  6:57
• HTC Radar
  6:53
• Samsung Galaxy Ace Duos
  6:53
• BlackBerry Curve 9380
  6:52
• Sony Xperia E dual
  6:42
• Samsung Galaxy S III mini
  6:22
• Samsung Galaxy Pocket
  5:54
• Nokia Lumia 900 for AT&T (LTE)
  5:53
• Sony Xperia ion LTE
  5:52
• Sony Xperia P
  5:33
• Nokia 808 PureView
  5:16
• LG Nitro HD (LTE)
  5:16
• HTC Titan II (LTE)
  5:10
• BlackBerry Bold 9790
  5:00
• Pantech Burst
  4:46

You will with web browsing though. The new POLED screen has only 720p resolution (which means less strain for the chipset), but it’s completely new technology not without its issues. You can read about those in our review and we guess we have to add high power consumption when displaying white to the list.

The LG G Flex managed 9 and a half hours, which is impressive by any measure, but not the best. The HTC One Max with a similarly sized battery and screen (though 1080p) managed to last over 2 hours more, but LCDs commonly beat OLED displays on this test. Case in point, the Samsung Galaxy Note 3 is half an hour behind the G Flex (it has a 5.5″ 1080p sAMOLED and 3,200mAh battery).

Web browsing

• Sony Xperia C
  12:45
• Acer Liquid E2
  12:39
• LG G2
  11:22
• HTC One Max
  11:20
• Sony Xperia ZR
  11:20
• Samsung Galaxy S4 mini duos
  10:10
• BlackBerry Q5
  10:04
• HTC One
  9:58
• Apple iPhone 5s
  9:58
• Apple iPhone 5
  9:56
• Samsung Galaxy S4 mini
  9:47
• LG G Flex
  9:31
• Motorola RAZR MAXX (ICS)
  9:12
• Apple iPad mini
  9:05
• Apple iPhone 5c
  9:05
• Oppo N1
  9:05
• Samsung Galaxy Note 3
  9:04
• ASUS Nexus 7 (2013)
  9:03
• Samsung Galaxy S4 zoom
  8:51
• Samsung Galaxy Note II N7100
  8:48
• BlackBerry Q10
  8:42
• Nokia Lumia 810
  8:20
• Asus Padfone 2
  8:20
• Moto X
  8:17
• Huawei Ascend Mate
  8:17
• Samsung Galaxy Mega 6.3
  8:17
• HTC One mini
  8:12
• Nokia Lumia 610
  8:01
• HTC One X+
  7:56
• Sony Xperia E dual
  7:42
• Samsung Galaxy S III mini
  7:38
• Nokia Lumia 720
  7:37
• Samsung Galaxy S4 Active
  7:35
• BlackBerry Z30
  7:34
• Samsung Galaxy S4 (S600)
  7:24
• Huawei MediaPad 7 Vogue
  7:23
• Motorola DROID RAZR MAXX
  7:23
• HTC Radar
  7:17
• Nokia Lumia 520
  7:15
• Samsung Galaxy S4 GPE
  7:13
• LG Optimus GJ
  7:11
• Gigabyte GSmart Maya M1 v2
  7:10
• Meizu MX3
  7:09
• Samsung Galaxy Grand Duos
  7:09
• Samsung Galaxy Express
  7:09
• Nokia Lumia 625
  7:07
• Motorola RAZR i
  7:06
• Samsung Galaxy S4 (Octa)
  6:58
• Apple iPhone 4S
  6:56
• Samsung I8262 Galaxy Core
  6:54
• HTC One V
  6:49
• LG Optimus G Pro
  6:40
• Samsung I9105 Galaxy S II Plus
  6:40
• Sony Xperia L
  6:40
• HTC Droid DNA
  6:40
• Samsung Galaxy Premier
  6:40
• Motorola Atrix HD
  6:40
• BlackBerry Curve 9380
  6:40
• Samsung Galaxy Ace 3
  6:38
• Sony Xperia Z
  6:37
• Samsung Galaxy Xcover 2
  6:35
• HTC Desire 600 dual sim
  6:34
• HTC Desire 500
  6:31
• Huawei Ascend P6
  6:30
• BlackBerry Z10
  6:27
• Samsung I9300 Galaxy S III (JB)
  6:27
• HTC Butterfly
  6:24
• Sony Xperia SP
  6:18
• Samsung i937 Focus S
  6:15
• Nokia Lumia 510
  6:13
• Sony Xperia ZL
  6:04
• HTC Windows Phone 8X
  6:01
• Sony Xperia Z1
  5:59
• Sony Xperia ion LTE
  5:56
• Samsung Galaxy Fame
  5:55
• Samsung Rugby Smart I847
  5:53
• Pantech Burst
  5:51
• Nokia Lumia 1020
  5:50
• Samsung Galaxy S Blaze 4G
  5:45
• HTC Desire V
  5:44
• HTC Evo 4G LTE
  5:41
• Nokia Lumia 920
  5:40
• Samsung Wave 3 S8600
  5:34
• Oppo Find 5
  5:33
• Sony Xperia T
  5:33
• Samsung Captivate Glide
  5:33
• Samsung I8530 Galaxy Beam
  5:28
• Samsung Galaxy Note LTE
  5:24
• Sony Xperia Z Ultra
  5:23
• Samsung Galaxy S Duos
  5:23
• HTC Sensation XL
  5:20
• Meizu MX 4-core
  5:19
• Samsung I9300 Galaxy S III
  5:17
• Sony Xperia acro S
  5:16
• HTC Rezound
  5:16
• HTC Desire X
  5:16
• LG Optimus G
  5:15
• HTC Rhyme
  5:08
• Samsung I9103 Galaxy R
  5:07
• HTC One X (AT&T)
  5:03
• Sony Ericsson Xperia Pro
  4:50
• LG Optimus Vu
  4:49
• HTC Vivid
  4:46
• LG Nexus 5
  4:46
• Samsung Galaxy Ace Duos
  4:45
• Meizu MX
  4:35
• Google Nexus 4
  4:34
• Nokia N9
  4:33
• Acer CloudMobile S500
  4:32
• Nokia Lumia 820
  4:24
• Samsung Galaxy S II
  4:24
• Sony Ericsson Xperia neo V
  4:20
• HTC One X
  4:18
• Nokia 808 PureView
  4:14
• LG Optimus 3D Max P720
  4:10
• Nokia Lumia 900 for AT&T
  4:10
• Nokia Lumia 800
  4:07
• HTC Titan II (LTE)
  4:05
• HTC One S
  4:03
• BlackBerry Bold 9790
  4:02
• LG Nitro HD
  4:00
• LG Optimus 4X HD
  3:59
• Sony Xperia P
  3:59
• Nokia Lumia 710
  3:51
• Nokia Lumia 620
  3:50
• Samsung Galaxy Pocket
  3:47
• Samsung Galaxy Note
  3:35
• Huawei Ascend P1
  3:23
• Samsung Galaxy Nexus
  3:01

If white web pages are power-hungry on OLED displays, videos are not as the brightness across the image is a lot more balanced. The sizeable battery pushed the LG G Flex on top in this test, falling just a few minutes short of the 20 hour mark. The Note 3 and One Max both lasted just over 13 hours. Since screen size is more important than resolution for watching videos, the G Flex makes a great portable movie player.

Video playback

• LG G Flex
  19:57
• Motorola RAZR MAXX (ICS)
  16:35
• Motorola DROID RAZR MAXX
  14:17
• Samsung Galaxy Note 3
  13:32
• Nokia Lumia 1020
  13:12
• Samsung Galaxy S4 mini
  13:12
• HTC One Max
  13:11
• Sony Xperia C
  12:53
• Samsung Galaxy S4 mini duos
  12:52
• Apple iPad mini
  12:51
• Samsung Galaxy Premier
  12:51
• Samsung Galaxy S4 GPE
  12:32
• Samsung Galaxy S4 (S600)
  12:30
• BlackBerry Q5
  12:28
• Huawei Ascend Mate
  12:18
• LG G2
  11:51
• Samsung Galaxy S4 (Octa)
  11:29
• Samsung Galaxy Note II N7100
  11:27
• BlackBerry Q10
  11:15
• Oppo N1
  11:15
• BlackBerry Z30
  
  10:35
• Apple iPhone 5s
  10:31
• Apple iPhone 5
  10:12
• HTC One
  10:02
• Moto X
  10:01
• Samsung Galaxy Express
  10:00
• Samsung I9105 Galaxy S II Plus
  10:00
• Nokia 808 PureView
  9:53
• Samsung I8530 Galaxy Beam
  9:42
• Samsung Rugby Smart I847
  9:34
• Samsung Galaxy S4 zoom
  9:30
• HTC One S
  9:28
• Samsung I9300 Galaxy S III (JB)
  9:27
• Apple iPhone 4S
  9:24
• HTC Evo 4G LTE
  9:07
• Sony Xperia Z Ultra
  8:45
• BlackBerry Z10
  8:44
• LG Optimus G Pro
  8:40
• Nokia N9
  8:40
• Samsung Galaxy Mega 6.3
  8:34
• HTC Butterfly
  8:28
• Samsung Galaxy Note
  8:25
• LG Optimus GJ
  8:15
• Samsung Galaxy Grand Duos
  8:11
• HTC One X+
  8:11
• Motorola RAZR i
  8:11
• Samsung Galaxy S II
  8:00
• Samsung i937 Focus S
  7:55
• Samsung Wave 3 S8600
  7:52
• HTC Desire 500
  7:50
• Samsung Galaxy S III mini
  7:46
• Sony Ericsson Xperia neo V
  7:45
• Apple iPhone 5c
  7:41
• Asus Padfone 2
  7:38
• Huawei Ascend P1
  7:38
• Samsung Galaxy S Blaze 4G
  7:33
• Acer Liquid E2
  7:30
• Samsung I8262 Galaxy Core
  7:30
• Sony Xperia ZR
  7:30
• HTC Droid DNA
  7:30
• Samsung Galaxy Note LTE
  7:30
• Samsung Galaxy Xcover 2
  7:30
• Sony Xperia SP
  7:27
• HTC One mini
  7:23
• Nokia Lumia 610
  7:23
• LG Optimus G
  7:16
• Samsung Galaxy S4 Active
  7:03
• ASUS Nexus 7 (2013)
  7:03
• Huawei Ascend P6
  6:55
• Samsung Galaxy Ace 3
  6:54
• HTC Desire 600 dual sim
  6:49
• Nokia Lumia 720
  6:43
• Huawei MediaPad 7 Vogue
  6:40
• Meizu MX 4-core
  6:33
• Nokia Lumia 620
  6:32
• Nokia Lumia 625
  6:29
• HTC Windows Phone 8X
  6:27
• Sony Xperia E dual
  6:27
• Nokia Lumia 810
  6:27
• HTC Desire V
  6:26
• HTC One X (AT&T)
  6:26
• Nokia Lumia 820
  6:25
• Samsung Galaxy Ace Duos
  6:25
• Gigabyte GSmart Maya M1 v2
  6:24
• Nokia Lumia 510
  6:23
• LG Optimus Vu
  6:23
• Samsung I9103 Galaxy R
  6:21
• Nokia Lumia 920
  6:19
• Sony Xperia Z1
  6:12
• HTC Sensation XL
  6:12
• LG Nexus 5
  6:06
• Samsung Galaxy Pocket
  6:06
• Samsung Captivate Glide
  6:04
• Sony Xperia ion LTE
  6:03
• Samsung Galaxy Nexus
  6:02
• Sony Xperia T
  6:01
• Motorola Atrix HD
  6:01
• HTC Vivid
  6:00
• HTC Radar
  5:54
• Nokia Lumia 800
  5:52
• Nokia Lumia 520
  5:50
• HTC Titan II
  5:50
• BlackBerry Bold 9790
  5:47
• HTC One X
  5:45
• Sony Ericsson Xperia Pro
  5:44
• Sony Xperia Z
  5:39
• Meizu MX3
  5:38
• Sony Xperia acro S
  5:38
• HTC Desire X
  5:38
• Pantech Burst
  5:38
• Sony Xperia ZL
  5:28
• Meizu MX
  5:27
• HTC Rhyme
  5:23
• HTC One V
  5:20
• Acer CloudMobile S500
  5:18
• Oppo Find 5
  5:18
• Nokia Lumia 900 for AT&T
  5:18
• BlackBerry Curve 9380
  5:09
• HTC Rezound
  5:03
• Samsung Galaxy Fame
  5:02
• Google Nexus 4
  4:55
• Sony Xperia L
  4:44
• Samsung Galaxy S Duos
  4:30
• Sony Xperia P
  4:30
• LG Nitro HD
  4:17
• LG Optimus 4X HD
  4:14
• LG Optimus 3D Max P720
  3:28
• Nokia Lumia 710
  3:27

The standby power draw is about as low as we have seen from mobile devices, which combined with the high scores in the talk and video playback tests result in a stunning endurance rating of 97 hours.

Depending on your usage pattern, you can easily get three days without charging from the LG G Flex even with heavier usage. If you do a lot of web browsing, however, you can expect something closer to two days without charging.