HTC One (E8) battery test

The HTC One (E8) sheds the weight of the aluminum unibody and drops the low-res UltraPixel camera in favor of a 13MP shooter. Neither of those affects battery life compared to the One (M8) and the battery capacity is still at 2,600mAh.

What could affect the battery endurance is the new chipset – the One (M8) we tested used a Qualcomm 8974AB while the One (E8) uses 8975AC.

What this amounts to is extra clockspeed in favor of the newer model (2.5GHz vs. 2.3GHz for the processor) but potentially more power draw too. Note that the One (M8) in the Asian markets used the faster chipset too.

It turns out that the HTC One (E8) lasts over two hours less than the One (M8) while doing voice calls. It’s still a respectable result but the new chipset shouldn’t have affected talk time, it’s not like it’s under heavy load during a call. The competition of the One twins is ahead of them both, this just widens the gap.

Note that we’re testing the single-SIM version of the phone, there’s a dual-SIM variant too. Same goes for the One (M8).

Talk time

• Samsung Galaxy Tab Pro 10.1 LTE
  46:44h
• Nokia Lumia 1520
  28:34h
• Sony Xperia Z1
  26:53h
• LG G3
  25:54h
• Samsung P6800 Galaxy Tab 7.7
  25:45h
• LG G Pro 2
  25:37h
• LG G Flex
  25:19h
• Sony Xperia T2 Ultra
  25:16h
• Huawei Ascend Mate
  25:12h
• Alcatel Hero
  25:02h
• Oppo N1
  25:01h
• LG G2
  25:01h
• Samsung Galaxy Note 3 Neo
  24:52h
• Sony Xperia Z Ultra
  24:23h
• Samsung P6200 Galaxy Tab 7.0 Plus
  22:42h
• Huawei MediaPad 7 Vogue
  22:16h
• Sony Xperia Z2
  22:13h
• HTC One Max
  22:13h
• Nokia Lumia 1320
  22:13h
• Samsung Galaxy Core LTE
  22:13h
• Nokia Lumia 1020
  22:13h
• Samsung Galaxy S5
  21:20h
• Motorola RAZR MAXX
  21:18h
• LG Optimus G Pro E985
  20:45h
• Sony Xperia Z1 Compact
  20:42h
• Motorola DROID RAZR MAXX
  20:24h
• Motorola RAZR i XT890
  20:07h
• Oppo Find 7
  20:03h
• HTC One (M8)
  20:01h
• BlackBerry Q10
  20:00h
• OnePlus One
  19:56h
• Samsung Galaxy Grand 2
  19:55h
• Samsung Galaxy Mega 6.3 I9200
  19:54h
• Sony Xperia SP
  19:49h
• HTC Butterfly S
  19:14h
• Oppo R819
  19:03h
• Asus PadFone X
  18:45h
• Samsung Galaxy Note 3
  18:12h
• LG G2 mini
  18:11h
• Oppo Find 7a
  18:11h
• Samsung I9505 Galaxy S4
  18:03h
• Sony Xperia ZR
  17:48h
• HTC One (E8)
  17:47h
• Samsung Galaxy Note II N7100
  16:57h
• HTC Desire 700 dual sim
  16:56h
• Samsung Ativ Odyssey I930
  16:41h
• Sony Xperia M2
  16:40h
• Samsung I9295 Galaxy S4 Active
  16:40h
• Nokia Lumia 930
  16:40h
• LG Nexus 5
  16:40h
• Motorola Moto E Dual SIM
  16:38h
• Motorola Moto E
  16:38h
• Sony Xperia Z
  16:03h
• Samsung Galaxy K zoom
  16:01h
• Samsung Galaxy S4 zoom
  15:32h
• LG Optimus G E975
  15:30h
• Sony Xperia ZL
  15:22h
• Nokia Lumia 720
  15:17h
• HTC Desire 816
  14:46h
• Nokia Lumia 630
  14:46h
• BlackBerry Q5
  14:31h
• Pantech Discover
  14:17h
• Huawei Ascend P6
  14:17h
• Oppo Find 5
  14:17h
• Nokia Lumia 620
  14:17h
• LG Nexus 4 E960
  14:17h
• Nokia Lumia Icon
  14:15h
• Motorola Moto G
  13:41h
• HTC One
  13:38h
• Huawei Ascend P7
  13:36h
• Nokia Lumia 520
  13:33h
• HTC One X+
  13:31h
• Sony Xperia C
  13:29h
• Samsung Galaxy Grand Neo
  13:20h
• Samsung I9190 Galaxy S4 mini
  13:10h
• HTC Desire 616 dual sim
  13:00h
• Samsung Galaxy Grand I9082
  12:45h
• LG Optimus GJ E975W
  12:39h
• HTC First
  12:31h
• Motorola DROID RAZR M
  12:31h
• Sony Xperia M
  12:31h
• Sony Xperia L
  12:30h
• Huawei Ascend P1
  12:30h
• Nokia Lumia 928
  12:27h
• HTC Butterfly
  12:18h
• Samsung Galaxy S III I747
  12:18h
• Samsung Galaxy Note N7000
  12:14h
• HTC One mini
  12:04h
• HTC Desire 600 dual sim
  11:58h
• Samsung I8530 Galaxy Beam
  11:58h
• Samsung Galaxy Core I8260
  11:52h
• Gionee Elife S5.5
  11:32h
• HTC Desire 500
  11:31h
• Samsung Galaxy Premier I9260
  11:30h
• HTC DROID Incredible 4G LTE
  11:25h
• Asus PadFone 2
  11:20h
• Nokia X
  11:13h
• HTC DROID DNA
  11:07h
• Samsung S8600 Wave 3
  11:07h
• LG Optimus L9 P760
  11:07h
• HTC One SV
  11:07h
• HTC Windows Phone 8X
  11:07h
• Samsung I9105 Galaxy S II Plus
  11:06h
• HTC Desire X
  11:03h
• Meizu MX3
  11:02h
• Samsung I9500 Galaxy S4
  11:01h
• Apple iPhone 5s
  10:46h
• Apple iPhone 5c
  10:18h
• Samsung I9300 Galaxy S III
  10:15h
• Samsung S7710 Galaxy Xcover 2
  10:03h
• Samsung Galaxy Express I8730
  10:00h
• Meizu MX 4-core
  10:00h
• HTC One V
  10:00h
• HTC One mini 2
  09:58h
• HTC One X
  9:57h
• HTC One S
  9:42h
• HTC One S C2
  9:42h
• Samsung I9103 Galaxy R
  9:40h
• Samsung Galaxy Ace 3
  9:32h
• HTC Sensation XL
  9:30h
• Sony Xperia J
  9:14h
• Nokia Lumia 810
  9:05h
• Acer CloudMobile S500
  9:05h
• Nokia Lumia 710
  9:05h
• Motorola ATRIX HD MB886
  9:04h
• HTC Vivid
  9:02h
• Nokia Lumia 920
  8:56h
• Nokia Lumia 610
  8:51h
• HTC Rhyme
  8:48h
• Apple iPhone 5
  8:42h
• LG Optimus 3D Max P720
  8:42h
• Sony Ericsson Xperia neo V
  8:41h
• Meizu MX
  8:39h
• Samsung I9100 Galaxy S II
  8:35h
• Samsung Galaxy S Duos S7562
  8:28h
• Nokia Lumia 800
  8:25h
• Samsung Galaxy Nexus I9250
  8:23h
• Nokia Lumia 510
  8:22h
• Samsung Galaxy Fame S6810
  8:21h
• BlackBerry Z10
  8:20h
• Samsung i927 Captivate Glide
  8:20h
• Sony Xperia T
  8:15h
• HTC Rezound
  8:10h
• Samsung Galaxy Note I717
  8:02h
• LG Optimus Vu F100S
  7:57h
• Apple iPhone 4s
  7:41h
• LG Optimus 4X HD P880
  7:41h
• Samsung Focus S I937
  7:25h
• Nokia Lumia 900
  7:21h
• Samsung Galaxy S Blaze 4G T769
  7:14h
• Samsung Rugby Smart I847
  7:09h
• Nokia Lumia 820
  7:09h
• Sony Xperia acro S
  7:09h
• Nokia N9
  6:57h
• Sony Ericsson Xperia pro
  6:57h
• Samsung Galaxy Ace Duos S6802
  6:53h
• HTC Radar
  6:53h
• BlackBerry Curve 9380
  6:52h
• Sony Xperia E dual
  6:42h
• Sony Xperia E
  6:40h
• Samsung Galaxy mini 2 S6500
  6:28h
• Samsung I8190 Galaxy S III mini
  6:22h
• Sony Xperia P
  5:58h
• Samsung Galaxy Pocket S5300
  5:54h
• Nokia Lumia 900 AT&T
  5:53h
• Sony Xperia ion LTE
  5:52h
• Nokia 808 PureView
  5:16h
• LG Nitro HD
  5:16h
• BlackBerry Bold 9790
  5:00h
• Pantech Burst
  4:46h

On the up side web browsing improved by almost a full hour. This could be due to a newer firmware compared to the software the One (M8) ran when we tested it. Anyway, this improvement means the One (E8) jumps ahead of the Samsung Galaxy S5, the One flagship was already well ahead of the LG G3.

Web browsing

• Sony Xperia C
  12:45h
• Nokia Lumia 1520
  12:40h
• Sony Xperia Z1 Compact
  12:37h
• HTC Desire 700 dual sim
  12:30h
• Sony Xperia T2 Ultra
  12:17h
• HTC Desire 816
  11:48h
• Sony Xperia Z2
  11:32h
• LG G2
  11:22h
• HTC One Max
  11:20h
• Sony Xperia ZR
  11:20h
• HTC Butterfly S
  11:07h
• Asus PadFone X
  11:07h
• LG G2 mini
  11:02h
• Nokia Lumia 1320
  10:58h
• BlackBerry Q5
  10:04h
• HTC One (E8)
  10:02h
• HTC One
  9:58h
• Apple iPhone 5s
  9:58h
• Apple iPhone 5
  9:56h
• Samsung Ativ Odyssey I930
  9:54h
• Sony Xperia M2
  9:48h
• Samsung I9190 Galaxy S4 mini
  9:47h
• OnePlus One
  9:46h
• Samsung Galaxy Note 3 Neo
  9:43h
• Alcatel Hero
  9:40h
• Samsung Galaxy Core LTE
  9:37h
• Samsung Galaxy S5
  9:36h
• LG G Pro 2
  9:31h
• LG G Flex
  9:31h
• Samsung Galaxy Tab Pro 10.1 LTE
  9:16h
• Motorola RAZR MAXX
  9:12h
• Samsung Galaxy K zoom
  9:10h
• HTC One (M8)
  9:06h
• Oppo N1
  9:05h
• Samsung Galaxy Grand 2
  9:05h
• Apple iPhone 5c
  9:05h
• Samsung Galaxy Note 3
  9:04h
• Motorola Moto G
  9:04h
• Samsung Galaxy S4 zoom
  8:51h
• Samsung Galaxy Note II N7100
  8:48h
• BlackBerry Q10
  8:42h
• Motorola Moto E Dual SIM
  8:42h
• Motorola Moto E
  8:42h
• Asus PadFone 2
  8:20h
• Nokia Lumia 810
  8:20h
• Huawei Ascend Mate
  8:17h
• Samsung Galaxy Mega 6.3 I9200
  8:17h
• HTC One mini
  8:12h
• Nokia Lumia 610
  8:01h
• HTC One X+
  7:56h
• Nokia Lumia 630
  7:54h
• Samsung Galaxy Grand Neo
  7:43h
• Motorola DROID RAZR M
  7:42h
• Sony Xperia E dual
  7:42h
• Samsung I8190 Galaxy S III mini
  7:38h
• Nokia Lumia 720
  7:37h
• Samsung I9295 Galaxy S4 Active
  7:35h
• Samsung I9505 Galaxy S4
  7:24h
• Huawei MediaPad 7 Vogue
  7:23h
• Motorola DROID RAZR MAXX
  7:23h
• HTC Radar
  7:17h
• Nokia Lumia 520
  7:15h
• Huawei Ascend P7
  7:13h
• LG Optimus GJ E975W
  7:11h
• Oppo Find 7a
  7:09h
• Samsung Galaxy Grand I9082
  7:09h
• Sony Xperia M
  7:09h
• Meizu MX3
  7:09h
• Samsung Galaxy Express I8730
  7:09h
• Motorola RAZR i XT890
  7:06h
• Sony Xperia J
  7:06h
• Samsung I9500 Galaxy S4
  6:58h
• Apple iPhone 4s
  6:56h
• Samsung P6800 Galaxy Tab 7.7
  6:54h
• Samsung Galaxy Core I8260
  6:54h
• HTC One V
  6:49h
• LG G3
  6:40h
• LG Optimus G Pro E985
  6:40h
• Sony Xperia L
  6:40h
• Samsung Galaxy Premier I9260
  6:40h
• HTC DROID DNA
  6:40h
• Samsung I9105 Galaxy S II Plus
  6:40h
• Motorola ATRIX HD MB886
  6:40h
• BlackBerry Curve 9380
  6:40h
• Sony Xperia E
  6:40h
• HTC First
  6:39h
• Samsung Galaxy Ace 3
  6:38h
• Sony Xperia Z
  6:37h
• Samsung S7710 Galaxy Xcover 2
  6:35h
• HTC Desire 600 dual sim
  6:34h
• HTC One mini 2
  06:33h
• HTC Desire 500
  6:31h
• Huawei Ascend P6
  6:30h
• Samsung I9300 Galaxy S III
  6:27h
• BlackBerry Z10
  6:27h
• HTC Butterfly
  6:24h
• Sony Xperia SP
  6:18h
• Samsung Galaxy S III I747
  6:16h
• HTC One SV
  6:15h
• Samsung Focus S I937
  6:15h
• Nokia Lumia 510
  6:13h
• Sony Xperia ZL
  6:04h
• Samsung Galaxy mini 2 S6500
  6:03h
• Samsung P6200 Galaxy Tab 7.0 Plus
  6:02h
• Oppo R819
  6:01h
• HTC Windows Phone 8X
  6:01h
• Sony Xperia Z1
  5:59h
• Sony Xperia ion LTE
  5:56h
• Samsung Galaxy Fame S6810
  5:55h
• Samsung Rugby Smart I847
  5:53h
• Pantech Burst
  5:51h
• Nokia Lumia 1020
  5:50h
• HTC DROID Incredible 4G LTE
  5:48h
• Samsung Galaxy S Blaze 4G T769
  5:45h
• Nokia Lumia 920
  5:40h
• Nokia Lumia 928
  5:36h
• Samsung S8600 Wave 3
  5:34h
• Pantech Discover
  5:33h
• Oppo Find 5
  5:33h
• Samsung i927 Captivate Glide
  5:33h
• Sony Xperia T
  5:33h
• Samsung I8530 Galaxy Beam
  5:28h
• Nokia Lumia 900
  5:25h
• HTC Desire 616 dual sim
  5:24h
• Samsung Galaxy Note I717
  5:24h
• Sony Xperia Z Ultra
  5:23h
• Samsung Galaxy S Duos S7562
  5:23h
• HTC Sensation XL
  5:20h
• Meizu MX 4-core
  5:19h
• Nokia Lumia Icon
  5:17h
• HTC Desire X
  5:16h
• HTC Rezound
  5:16h
• Sony Xperia acro S
  5:16h
• LG Optimus G E975
  5:15h
• Gionee Elife S5.5
  5:10h
• HTC Rhyme
  5:08h
• Samsung I9103 Galaxy R
  5:07h
• Oppo Find 7
  5:02h
• LG Optimus L9 P760
  5:02h
• Nokia Lumia 930
  4:57h
• Nokia X
  4:55h
• Sony Ericsson Xperia pro
  4:50h
• LG Optimus Vu F100S
  4:49h
• LG Nexus 5
  4:46h
• HTC Vivid
  4:46h
• Samsung Galaxy Ace Duos S6802
  4:45h
• Meizu MX
  4:35h
• LG Nexus 4 E960
  4:34h
• Nokia N9
  4:33h
• Acer CloudMobile S500
  4:32h
• Samsung I9100 Galaxy S II
  4:24h
• Nokia Lumia 820
  4:24h
• Sony Ericsson Xperia neo V
  4:20h
• HTC One X
  4:18h
• Nokia 808 PureView
  4:14h
• LG Optimus 3D Max P720
  4:10h
• Nokia Lumia 900 AT&T
  4:10h
• Nokia Lumia 800
  4:07h
• HTC One S
  4:03h
• HTC One S C2
  4:03h
• BlackBerry Bold 9790
  4:02h
• LG Nitro HD
  4:00h
• LG Optimus 4X HD P880
  3:59h
• Sony Xperia P
  3:59h
• Nokia Lumia 710
  3:51h
• Nokia Lumia 620
  3:50h
• Samsung Galaxy Pocket S5300
  3:47h
• Samsung Galaxy Note N7000
  3:35h
• Huawei Ascend P1
  3:23h
• Samsung Galaxy Nexus I9250
  3:01h

Video playback was virtually unaffected and stays a hair ahead of the Galaxy S5 and they outlast the LG G3 by a wide margin.

Video playback

• LG G Flex
  19:57h
• Motorola RAZR MAXX
  16:35h
• Motorola DROID RAZR MAXX
  14:17h
• Samsung Galaxy Note 3
  13:32h
• Sony Xperia T2 Ultra
  13:12h
• Samsung I9190 Galaxy S4 mini
  13:12h
• Nokia Lumia 1020
  13:12h
• HTC One Max
  13:11h
• Sony Xperia C
  12:53h
• Samsung Galaxy Premier I9260
  12:51h
• Nokia Lumia 1520
  12:31h
• Samsung I9505 Galaxy S4
  12:30h
• BlackBerry Q5
  12:28h
• Huawei Ascend Mate
  12:18h
• Sony Xperia Z2
  12:16h
• Samsung Galaxy Tab Pro 10.1 LTE
  12:10h
• LG G2
  11:51h
• Samsung Galaxy Note 3 Neo
  11:38h
• Samsung P6800 Galaxy Tab 7.7
  11:37h
• Samsung I9500 Galaxy S4
  11:29h
• Samsung Galaxy Note II N7100
  11:27h
• OnePlus One
  11:23h
• HTC One (E8)
  11:16h
• Oppo N1
  11:15h
• BlackBerry Q10
  11:15h
• HTC One (M8)
  11:14h
• Samsung Galaxy S5
  11:05h
• Asus PadFone X
  11:01h
• HTC Desire 816
  10:34h
• Apple iPhone 5s
  10:31h
• LG G2 mini
  10:23h
• Apple iPhone 5
  10:12h
• Samsung Galaxy K zoom
  10:08h
• Sony Xperia M2
  10:04h
• HTC First
  10:03h
• HTC One
  10:02h
• Sony Xperia Z1 Compact
  10:01h
• Samsung Galaxy Express I8730
  10:00h
• Samsung I9105 Galaxy S II Plus
  10:00h
• LG G3
  9:57h
• Nokia 808 PureView
  9:53h
• Alcatel Hero
  9:49h
• Sony Xperia M
  9:49h
• Samsung I8530 Galaxy Beam
  9:42h
• Samsung Rugby Smart I847
  9:34h
• Samsung Galaxy S4 zoom
  9:30h
• HTC One S
  9:28h
• HTC One S C2
  9:28h
• Samsung I9300 Galaxy S III
  9:27h
• Apple iPhone 4s
  9:24h
• Samsung Galaxy mini 2 S6500
  9:22h
• Oppo Find 7a
  9:19h
• Nokia Lumia 1320
  9:17h
• HTC Butterfly S
  9:03h
• Motorola DROID RAZR M
  9:00h
• Sony Xperia E
  9:00h
• Samsung Ativ Odyssey I930
  8:59h
• Sony Xperia Z Ultra
  8:45h
• BlackBerry Z10
  8:44h
• Samsung Galaxy Grand 2
  8:41h
• LG Optimus G Pro E985
  8:40h
• Nokia N9
  8:40h
• Samsung Galaxy Mega 6.3 I9200
  8:34h
• HTC Butterfly
  8:28h
• Samsung Galaxy Note N7000
  8:25h
• LG Optimus GJ E975W
  8:15h
• Samsung Galaxy S III I747
  8:14h
• HTC One X+
  8:11h
• Samsung Galaxy Grand I9082
  8:11h
• Motorola RAZR i XT890
  8:11h
• Sony Xperia J
  8:11h
• Huawei Ascend P7
  8:10h
• Samsung I9100 Galaxy S II
  8:00h
• Samsung Focus S I937
  7:55h
• Samsung S8600 Wave 3
  7:52h
• HTC Desire 500
  7:50h
• Samsung I8190 Galaxy S III mini
  7:46h
• Sony Ericsson Xperia neo V
  7:45h
• Apple iPhone 5c
  7:41h
• Asus PadFone 2
  7:38h
• Huawei Ascend P1
  7:38h
• Nokia Lumia Icon
  7:34h
• Samsung Galaxy S Blaze 4G T769
  7:33h
• Sony Xperia ZR
  7:30h
• Samsung Galaxy Core I8260
  7:30h
• HTC DROID DNA
  7:30h
• Samsung S7710 Galaxy Xcover 2
  7:30h
• Samsung Galaxy Note I717
  7:30h
• Sony Xperia SP
  7:27h
• HTC One mini
  7:23h
• Nokia Lumia 610
  7:23h
• LG Optimus G E975
  7:16h
• Nokia Lumia 630
  7:06h
• Samsung I9295 Galaxy S4 Active
  7:03h
• Samsung Galaxy Grand Neo
  6:55h
• Huawei Ascend P6
  6:55h
• HTC One SV
  6:55h
• Pantech Discover
  6:55h
• Samsung Galaxy Ace 3
  6:54h
• Nokia Lumia 928
  6:54h
• HTC DROID Incredible 4G LTE
  6:51h
• HTC Desire 600 dual sim
  6:49h
• Nokia Lumia 720
  6:43h
• Huawei MediaPad 7 Vogue
  6:40h
• Motorola Moto G
  6:37h
• Nokia Lumia 900
  6:37h
• Meizu MX 4-core
  6:33h
• Nokia Lumia 620
  6:32h
• Motorola Moto E Dual SIM
  6:31h
• Motorola Moto E
  6:31h
• Sony Xperia E dual
  6:27h
• HTC Windows Phone 8X
  6:27h
• HTC Desire 700 dual sim
  6:26h
• Nokia Lumia 810
  6:26h
• Samsung Galaxy Ace Duos S6802
  6:25h
• Nokia Lumia 820
  6:25h
• Nokia Lumia 510
  6:23h
• LG Optimus Vu F100S
  6:23h
• Samsung I9103 Galaxy R
  6:21h
• Nokia Lumia 920
  6:19h
• Sony Xperia Z1
  6:12h
• HTC Sensation XL
  6:12h
• Nokia X
  6:10h
• LG Nexus 5
  6:06h
• Samsung Galaxy Pocket S5300
  6:06h
• HTC One mini 2
  06:05h
• Samsung i927 Captivate Glide
  6:04h
• Sony Xperia ion LTE
  6:03h
• Gionee Elife S5.5
  6:02h
• Samsung Galaxy Nexus I9250
  6:02h
• Motorola ATRIX HD MB886
  6:01h
• Sony Xperia T
  6:01h
• HTC Vivid
  6:00h
• Oppo Find 7
  5:58h
• HTC Radar
  5:54h
• Oppo R819
  5:54h
• LG Optimus L9 P760
  5:53h
• Nokia Lumia 800
  5:52h
• Nokia Lumia 520
  5:50h
• LG G Pro 2
  5:49h
• Nokia Lumia 930
  5:48h
• BlackBerry Bold 9790
  5:47h
• HTC One X
  5:45h
• Sony Ericsson Xperia pro
  5:44h
• Sony Xperia Z
  5:39h
• Meizu MX3
  5:38h
• Pantech Burst
  5:38h
• HTC Desire X
  5:38h
• Sony Xperia acro S
  5:38h
• Samsung Galaxy Core LTE
  5:34h
• Sony Xperia ZL
  5:28h
• Meizu MX
  5:27h
• HTC Rhyme
  5:23h
• HTC One V
  5:20h
• Oppo Find 5
  5:18h
• Acer CloudMobile S500
  5:18h
• Nokia Lumia 900 AT&T
  5:18h
• Samsung P6200 Galaxy Tab 7.0 Plus
  5:16h
• HTC Desire 616 dual sim
  5:15h
• BlackBerry Curve 9380
  5:09h
• HTC Rezound
  5:03h
• Samsung Galaxy Fame S6810
  5:02h
• LG Nexus 4 E960
  4:55h
• Sony Xperia L
  4:44h
• Samsung Galaxy S Duos S7562
  4:30h
• Sony Xperia P
  4:30h
• LG Nitro HD
  4:17h
• LG Optimus 4X HD P880
  4:14h
• LG Optimus 3D Max P720
  3:28h
• Nokia Lumia 710
  3:27h

It’s worth pointing out that the screens on the One (E8) and One (M8) were equally bright for the tests.

Despite a drop in talk time, the HTC One (E8) scores a better endurance rating than its metal-clad twin – 77 hours vs. 71 hours. The Galaxy S5 and LG G3 had flanked the One (M8) with scores differing by an hour or two. The HTC One (E8) edges out both of those plus its twin.