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HTC One M9 First Impressions

Microevolution. HTC only changed a few things about the tried-and-true look of their top-of-the-line One M9. Instead they made significant improvements to the cameras and installed a modern Snapdragon 810 into the smartphone. In a rush of bold self-confidence, they also raised the recommended retail price.

For the original German article, see here.

Prior to the publishing of our comprehensive review of the HTC One M9, we want to outline our first impressions for our readers and provide you with our first test results. The One M9's predecessor from the previous year, the One M8, made a good impression on us and only received criticism for its mediocre camera. HTC wants to turn that around and sent their new smartphone into the running with a new 20 MP camera module. The speedy Qualcomm Snapdragon 810 ought to provide the necessary computing power for lightning-fast performance, and the somewhat larger battery promises good stamina as well.

The HTC One M9 has many competitors, but we have to compare it to the previous year's models. Both the LG G3 and the Samsung Galaxy S5 already have successors behind the starting gate. The Xperia Z3 and the OnePlus One represent the remaining Android competitors in this class. The iPhone 6 and the Lumia 930 are based on iOS and Windows Phone, respectively.

HTC One M9 (One Series)
Processor
Qualcomm Snapdragon 810 MSM8994 8 x 2 GHz, Cortex-A57/-A53
Graphics adapter
Qualcomm Adreno 430, Core: 650 MHz
Memory
3 GB 
Display
5.00 inch 16:9, 1920 x 1080 pixel, Capacitive, 10-point multitouch, Super LCD 3, glossy: yes
Storage
32 GB eMMC Flash, 32 GB 
, eMMC 5.0, 21.04 GB free
Connections
1 USB 2.0, Audio Connections: Combined headphone/microphone jack, Card Reader: MicroSD up to 2TB, Sensors: Ambient light sensor, Proximity sensor, Accelerometer, Orientation sensor and G-sensor, Digital compass, Sensor hub, GPS, Glonass, NFC, OTG, MHL 3.0, DLNA, Infrarot, Miracast
Networking
802.11 a/b/g/n/ac (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5/), Bluetooth 4.1, GSM/GPRS/EDGE (850, 900, 1800 and 1900 MHz), UMTS/HSPA+ (850, 900, 1900 and 2100 MHz), LTE Cat. 6 (700, 800, 850, 900, 1800, 2100 and 2600 MHz)
Size
height x width x depth (in mm): 9.61 x 144.6 x 69.7 ( = 0.38 x 5.69 x 2.74 in)
Battery
Lithium-Polymer, 2840 mAh, Talk time 2G (according to manufacturer): 25.4 h, Talk time 3G (according to manufacturer): 21.7 h, Standby 2G (according to manufacturer): 391 h, Standby 3G (according to manufacturer): 402 h
Operating System
Android 5.0 Lollipop
Camera
Webcam: 4.0 MP HTC UltraPixel, Main camera: 20 MP (autofocus, f/2.2, UHD video)
Additional features
Speakers: Two stereo speakers with Dolby audio, Keyboard: Virtual, Power supply, data cable, headphones, HTC Help, HTC Club, Polaris Office 5, Cloudex, fx Image Editing, HTC Dot View, HTC Backup, 24 Months Warranty
Weight
157 g ( = 5.54 oz / 0.35 pounds), Power Supply: 56 g ( = 1.98 oz / 0.12 pounds)
Price
749 Euro
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

First Impression

On the outside, the HTC One M9 hardly differs from its predecessor. The case is still constructed of brushed aluminum and not only looks attractive but is pleasing to the touch. It also feels very good in your hand. For the first time, the metal is available in two colors; a world premiere, according to the Taiwanese manufacturer.

The smartphone's speakers are still impressive and some of the best we've seen in a mobile phone. HTC even one-upped themselves and are promising virtual surround sound. They've also made a few small updates in the realm of communications modules: Bluetooth is now available in version 4.1 and LTE in Cat. 6. The Snapdragon 810 would also have been able to support LTE Cat. 9.

With an update, HTC now has the previously known problem with surface temperatures well under control. We will discuss this at length in our forthcoming comprehensive review.

152.9 mm / 6.02 inch 75.9 mm / 2.99 inch 8.9 mm / 0.3504 inch 164 g0.3616 lbs146.36 mm / 5.76 inch 70.6 mm / 2.78 inch 9.35 mm / 0.3681 inch 160 g0.3527 lbs146.3 mm / 5.76 inch 74.6 mm / 2.94 inch 8.95 mm / 0.3524 inch 149 g0.3285 lbs144.6 mm / 5.69 inch 69.7 mm / 2.74 inch 9.61 mm / 0.3783 inch 157 g0.3461 lbs146.5 mm / 5.77 inch 72 mm / 2.83 inch 7.3 mm / 0.2874 inch 152 g0.3351 lbs142 mm / 5.59 inch 72.5 mm / 2.85 inch 8.1 mm / 0.3189 inch 145 g0.3197 lbs137 mm / 5.39 inch 71 mm / 2.8 inch 9.8 mm / 0.3858 inch 170 g0.3748 lbs138.1 mm / 5.44 inch 67 mm / 2.64 inch 6.9 mm / 0.2717 inch 129 g0.2844 lbs148 mm / 5.83 inch 105 mm / 4.13 inch 1 mm / 0.03937 inch 1.5 g0.00331 lbs

Cameras

The One M8's ultra-pixel lens has now migrated to the front side of the smartphone, while the backside is now outfitted with an unsparing 20 MP camera. Compared to the M8 (4 MP), this is a huge improvement. Our comprehensive review will reveal whether HTC has finally managed to provide a first-class camera.

The back camera's specs are extremely promising. The f/2.2 aperture promises good light sensitivity, and all the important functions like autofocus and HDR are on board. Videos can be recorded in Ultra HD.

Panorama shot with the HTC One M9
Panorama shot with the HTC One M9

Display

The display is tack-sharp and offers excellent contrast.
The display is tack-sharp and offers excellent contrast.

The display remains unchanged: 5-inches with a resolution of 1920x1080 pixels. The resulting pixel density of 441 PPI makes the screen content look razor sharp.

With the display's improved black value, HTC was able to boost the contrast ratio yet again. Unfortunately, the brightness distribution is now mediocre, and the color-space coverage leaves something to be desired. The panel shows some substantial deviations in the realm of color accuracy, and the grayscale is plagued by an especially visible blue cast.

418
cd/m²
452
cd/m²
458
cd/m²
439
cd/m²
474
cd/m²
492
cd/m²
445
cd/m²
463
cd/m²
479
cd/m²
Distribution of brightness
tested with X-Rite i1Pro 2
Maximum: 492 cd/m² (Nits) Average: 457.8 cd/m²
Brightness Distribution: 85 %
Center on Battery: 474 cd/m²
Contrast: 1185:1 (Black: 0.4 cd/m²)
ΔE Color 6.32 | 0.5-29.43 Ø5
ΔE Greyscale 6.36 | 0.57-98 Ø5.3
58.81% AdobeRGB 1998 (Argyll 1.6.3 3D)
Gamma: 2.43
HTC One M9
Adreno 430, 810 MSM8994, 32 GB eMMC Flash
HTC One M8
Adreno 330, 801 MSM8974AB, 16 GB iNAND Flash
Sony Xperia Z3
Adreno 330, 801 MSM8974AC, 16 GB eMMC Flash
Apple iPhone 6
PowerVR GX6450, A8, 128 GB eMMC Flash
Samsung Galaxy S5
Adreno 330, 801 MSM8974AC, 16 GB eMMC Flash
OnePlus One
Adreno 330, 801 MSM8974AC, 64 GB eMMC Flash
Screen
-3%
-13%
2%
-1%
-14%
Brightness middle
474
474
0%
702
48%
520
10%
358
-24%
423
-11%
Brightness
458
486
6%
671
47%
511
12%
364
-21%
408
-11%
Brightness Distribution
85
93
9%
90
6%
88
4%
82
-4%
83
-2%
Black Level *
0.4
0.54
-35%
0.72
-80%
0.61
-53%
0.54
-35%
Contrast
1185
878
-26%
975
-18%
852
-28%
783
-34%
Colorchecker dE 2000 *
6.32
5.86
7%
8.92
-41%
3.92
38%
5.28
16%
5.56
12%
Greyscale dE 2000 *
6.36
5.2
18%
9.59
-51%
4.33
32%
4.65
27%
7.55
-19%
Gamma
2.43 91%
2.29 96%
2.75 80%
2.46 89%
2.48 89%
2.33 94%
CCT
8218 79%
7218 90%
9408 69%
7384 88%
7690 85%
7624 85%
Color Space (Percent of AdobeRGB 1998)
58.81

* ... smaller is better

Performance

The Snapdragon 810 MSM8994 in the HTC One M9 is responsible for the smartphone's powerful system performance. The SoC is the current crème-de-la-crème from the Californian manufacturer and one of the fastest chips on the market. Only the Tegra K1 and Samsung's Exynos 7420 can compete with this potent processor. The chip computes on eight CPU cores in total (4x Cortex-A57, 4x Cortex-A53) and clocks at up to 2.0 GHz. 64-bit computing is also supported. The Google Android 5.0.2 Lollipop OS can fully utilize the SoC's resources. The processor is supported by 3 GB of RAM. The integrated Adreno 430 takes care of graphics tasks and should be up to 30% faster than its predecessor (the Adreno 420).

In the benchmarks, the HTC One M9 produced very good results, though we honestly would have expected a little more. Apple's A8 SoC is sometimes a bit faster, as is Nvidia's Tegra K1. Even the Snapdragon 805, our current model's predecessor, sometimes achieves better results. We'll take a closer look at the reasons for this behavior in our comprehensive review.

Geekbench 3
32 Bit Single-Core Score (sort by value)
HTC One M9
1163 Points
Apple iPhone 6
1619 Points +39%
NVIDIA Shield Tablet P1761W
1127 Points -3%
Google Nexus 9
1719 Points +48%
Google Nexus 6
1043 Points -10%
Samsung Galaxy Note 4
1112 Points -4%
OnePlus One
878 Points -25%
HTC One M8
957 Points -18%
32 Bit Multi-Core Score (sort by value)
HTC One M9
3499 Points
Apple iPhone 6
2889 Points -17%
NVIDIA Shield Tablet P1761W
3495 Points 0%
Google Nexus 9
2892 Points -17%
Google Nexus 6
3141 Points -10%
Samsung Galaxy Note 4
3239 Points -7%
OnePlus One
2095 Points -40%
HTC One M8
2785 Points -20%
BaseMark OS II
Overall (sort by value)
HTC One M9
1410 Points
Apple iPhone 6
1374 Points -3%
NVIDIA Shield Tablet P1761W
1431 Points +1%
Google Nexus 9
1845 Points +31%
Google Nexus 6
995 Points -29%
Samsung Galaxy Note 4
1273 Points -10%
OnePlus One
1131 Points -20%
Nokia Lumia 930
1085 Points -23%
System (sort by value)
HTC One M9
1672 Points
Apple iPhone 6
2042 Points +22%
NVIDIA Shield Tablet P1761W
1012 Points -39%
Google Nexus 9
1729 Points +3%
Google Nexus 6
1604 Points -4%
Samsung Galaxy Note 4
1647 Points -1%
OnePlus One
1768 Points +6%
Nokia Lumia 930
1296 Points -22%
Memory (sort by value)
HTC One M9
933 Points
Apple iPhone 6
709 Points -24%
NVIDIA Shield Tablet P1761W
596 Points -36%
Google Nexus 9
1509 Points +62%
Google Nexus 6
421 Points -55%
Samsung Galaxy Note 4
595 Points -36%
OnePlus One
587 Points -37%
Nokia Lumia 930
1500 Points +61%
Graphics (sort by value)
HTC One M9
3210 Points
Apple iPhone 6
2264 Points -29%
NVIDIA Shield Tablet P1761W
8065 Points +151%
Google Nexus 9
8602 Points +168%
Google Nexus 6
2130 Points -34%
Samsung Galaxy Note 4
3441 Points +7%
OnePlus One
2382 Points -26%
Nokia Lumia 930
1233 Points -62%
Web (sort by value)
HTC One M9
789 Points
Apple iPhone 6
1086 Points +38%
NVIDIA Shield Tablet P1761W
863 Points +9%
Google Nexus 9
516 Points -35%
Google Nexus 6
682 Points -14%
Samsung Galaxy Note 4
779 Points -1%
OnePlus One
661 Points -16%
Nokia Lumia 930
579 Points -27%
AnTuTu v5 - Total Score (sort by value)
HTC One M9
55374 Points
Apple iPhone 6
49093 Points -11%
NVIDIA Shield Tablet P1761W
55435 Points 0%
Google Nexus 9
56577 Points +2%
Google Nexus 6
51812 Points -6%
Samsung Galaxy Note 4
47172 Points -15%
OnePlus One
47123 Points -15%
3DMark
1280x720 offscreen Ice Storm Unlimited Score (sort by value)
HTC One M9
22783 (22783min - 23171max) Points
Apple iPhone 6
16985 Points -25%
NVIDIA Shield Tablet P1761W
33129 Points +45%
Google Nexus 9
26455 Points +16%
Google Nexus 6
23368 Points +3%
Samsung Galaxy Note 4
20299 Points -11%
OnePlus One
16692 Points -27%
HTC One M8
13856 Points -39%
1280x720 offscreen Ice Storm Unlimited Graphics Score (sort by value)
HTC One M9
34429 (34429min - 34485max) Points
Apple iPhone 6
22509 Points -35%
NVIDIA Shield Tablet P1761W
39590 Points +15%
Google Nexus 9
39070 Points +13%
Google Nexus 6
25480 Points -26%
Samsung Galaxy Note 4
20733 Points -40%
OnePlus One
18074 Points -48%
HTC One M8
15928 Points -54%
1280x720 offscreen Ice Storm Unlimited Physics (sort by value)
HTC One M9
10432 (10432min - 10786max) Points
Apple iPhone 6
9137 Points -12%
NVIDIA Shield Tablet P1761W
21086 Points +102%
Google Nexus 9
12420 Points +19%
Google Nexus 6
18113 Points +74%
Samsung Galaxy Note 4
18913 Points +81%
OnePlus One
13167 Points +26%
HTC One M8
9521 Points -9%
GFXBench 3.0
on screen Manhattan Onscreen OGL (sort by value)
HTC One M9
24 fps
Apple iPhone 6
29.8 fps +24%
NVIDIA Shield Tablet P1761W
29.8 fps +24%
Google Nexus 9
22.5 fps -6%
Google Nexus 6
12 fps -50%
Samsung Galaxy Note 4
11 fps -54%
OnePlus One
12 fps -50%
HTC One M8
11.2 fps -53%
1920x1080 1080p Manhattan Offscreen (sort by value)
HTC One M9
23 fps
Apple iPhone 6
17.8 fps -23%
NVIDIA Shield Tablet P1761W
31.2 fps +36%
Google Nexus 9
31 fps +35%
Google Nexus 6
19 fps -17%
Samsung Galaxy Note 4
17.7 fps -23%
OnePlus One
12 fps -48%
HTC One M8
10.5 fps -54%
GFXBench (DX / GLBenchmark) 2.7
T-Rex Onscreen (sort by value)
HTC One M9
50 fps
Apple iPhone 6
51.9 fps +4%
NVIDIA Shield Tablet P1761W
57 fps +14%
Google Nexus 9
43.4 fps -13%
Google Nexus 6
28 fps -44%
Samsung Galaxy Note 4
27.7 fps -45%
OnePlus One
29 fps -42%
Nokia Lumia 930
20 fps -60%
HTC One M8
30.2 fps -40%
1920x1080 T-Rex Offscreen (sort by value)
HTC One M9
49 fps
Apple iPhone 6
42.6 fps -13%
NVIDIA Shield Tablet P1761W
66 fps +35%
Google Nexus 9
57.8 fps +18%
Google Nexus 6
39 fps -20%
Samsung Galaxy Note 4
42.4 fps -13%
OnePlus One
28 fps -43%
Nokia Lumia 930
15 fps -69%
HTC One M8
28.1 fps -43%
Vellamo 3.x
Browser (sort by value)
HTC One M9
3174 Points
NVIDIA Shield Tablet P1761W
4860 (4833min - 4903max) Points +53%
NVIDIA Shield Tablet P1761W
2869 (2681min - 3056max) Points -10%
Google Nexus 9
6263 Points +97%
Google Nexus 6
3740 Points +18%
Samsung Galaxy Note 4
3472 Points +9%
OnePlus One
2683 Points -15%
Multicore Beta (sort by value)
HTC One M9
2298 Points
NVIDIA Shield Tablet P1761W
2460 (2444min - 2476max) Points +7%
Google Nexus 9
2642 Points +15%
Google Nexus 6
1701 Points -26%
Samsung Galaxy Note 4
1924 Points -16%
OnePlus One
1771 Points -23%
Metal (sort by value)
HTC One M9
2280 Points
NVIDIA Shield Tablet P1761W
1754 (1729min - 1778max) Points -23%
Google Nexus 9
2754 Points +21%
Google Nexus 6
1579 Points -31%
Samsung Galaxy Note 4
1817 Points -20%
OnePlus One
1622 Points -29%
WebXPRT 2013
Overall (sort by value)
HTC One M9
287 Points
Apple iPhone 6
570 Points +99%
NVIDIA Shield Tablet P1761W
530 Points +85%
Google Nexus 9
552 Points +92%
Google Nexus 6
340 Points +18%
Samsung Galaxy Note 4
326 Points +14%
OnePlus One
273 Points -5%
Nokia Lumia 930
300 Points +5%
HTC One M8
271 Points -6%
Photo Effects (sort by value)
HTC One M9
1585 ms *
Apple iPhone 6
965 ms * +39%
NVIDIA Shield Tablet P1761W
698 ms * +56%
Google Nexus 9
576 ms * +64%
Google Nexus 6
898 ms * +43%
Samsung Galaxy Note 4
981 ms * +38%
OnePlus One
946 ms * +40%
Nokia Lumia 930
1004 ms * +37%
HTC One M8
949 ms * +40%
Face Detection (sort by value)
HTC One M9
2237 ms *
Apple iPhone 6
1685 ms * +25%
NVIDIA Shield Tablet P1761W
975 ms * +56%
Google Nexus 9
810 ms * +64%
Google Nexus 6
1736 ms * +22%
Samsung Galaxy Note 4
1714 ms * +23%
OnePlus One
2124 ms * +5%
Nokia Lumia 930
2515 ms * -12%
HTC One M8
4534 ms * -103%
Stocks Dashboard (sort by value)
HTC One M9
1088 ms *
Apple iPhone 6
348 ms * +68%
NVIDIA Shield Tablet P1761W
742 ms * +32%
Google Nexus 9
766 ms * +30%
Google Nexus 6
1231 ms * -13%
Samsung Galaxy Note 4
1269 ms * -17%
OnePlus One
1488 ms * -37%
Nokia Lumia 930
1189 ms * -9%
HTC One M8
952 ms * +12%
Offline Notes (sort by value)
HTC One M9
1132 ms *
Apple iPhone 6
499.1 ms * +56%
NVIDIA Shield Tablet P1761W
748 ms * +34%
Google Nexus 9
900 ms * +20%
Google Nexus 6
1158 ms * -2%
Samsung Galaxy Note 4
1253 ms * -11%
OnePlus One
1799 ms * -59%
Nokia Lumia 930
1226 ms * -8%
HTC One M8
1355 ms * -20%
Browsermark - 2.1 (sort by value)
HTC One M9
1729 points
Apple iPhone 6
3297 points +91%
Samsung Galaxy Note 4
1478 points -15%
OnePlus One
1368 points -21%
Nokia Lumia 930
829 points -52%
Octane V2 - Total Score (sort by value)
HTC One M9
6493 Points
Apple iPhone 6
7478 Points +15%
NVIDIA Shield Tablet P1761W
6777 Points +4%
Google Nexus 9
8210 Points +26%
Google Nexus 6
5271 Points -19%
Samsung Galaxy Note 4
5379 Points -17%
Nokia Lumia 930
2737 Points -58%
HTC One M8
3131 Points -52%
Sunspider - 1.0 Total Score (sort by value)
HTC One M9
840 ms *
Apple iPhone 6
340 ms * +60%
NVIDIA Shield Tablet P1761W
525 ms * +37%
NVIDIA Shield Tablet P1761W
458 ms * +45%
Google Nexus 9
919 ms * -9%
Google Nexus 6
784 ms * +7%
Samsung Galaxy Note 4
956 ms * -14%
OnePlus One
2180 ms * -160%
Nokia Lumia 930
534 ms * +36%
HTC One M8
594 ms * +29%
Mozilla Kraken 1.1 - Total (sort by value)
HTC One M9
6508 ms *
Apple iPhone 6
4597 ms * +29%
NVIDIA Shield Tablet P1761W
4286 ms * +34%
Google Nexus 9
4031 ms * +38%
Google Nexus 6
6124 ms * +6%
Samsung Galaxy Note 4
6127 ms * +6%
OnePlus One
7883 ms * -21%
Nokia Lumia 930
11108 ms * -71%
HTC One M8
8990 ms * -38%
AndroBench 3-5
Sequential Read 256KB (sort by value)
HTC One M9
235.1 MB/s
NVIDIA Shield Tablet P1761W
83 MB/s -65%
Google Nexus 9
279.2 MB/s +19%
Google Nexus 6
25.78 MB/s -89%
Samsung Galaxy Note 4
178.8 MB/s -24%
OnePlus One
223.6 MB/s -5%
HTC One M8
88.4 MB/s -62%
Sequential Write 256KB (sort by value)
HTC One M9
123.8 MB/s
NVIDIA Shield Tablet P1761W
15.5 MB/s -87%
Google Nexus 9
75.5 MB/s -39%
Google Nexus 6
18.46 MB/s -85%
Samsung Galaxy Note 4
38.91 MB/s -69%
OnePlus One
159.7 MB/s +29%
HTC One M8
19.51 MB/s -84%
Random Read 4KB (sort by value)
HTC One M9
20.66 MB/s
NVIDIA Shield Tablet P1761W
11 MB/s -47%
Google Nexus 9
36.22 MB/s +75%
Google Nexus 6
7.85 MB/s -62%
Samsung Galaxy Note 4
19.87 MB/s -4%
OnePlus One
18.27 MB/s -12%
HTC One M8
10.53 MB/s -49%
Random Write 4KB (sort by value)
HTC One M9
13.91 MB/s
NVIDIA Shield Tablet P1761W
0.9 MB/s -94%
Google Nexus 9
14.49 MB/s +4%
Google Nexus 6
1.49 MB/s -89%
Samsung Galaxy Note 4
3.14 MB/s -77%
OnePlus One
10.42 MB/s -25%
HTC One M8
0.88 MB/s -94%

Legend

 
HTC One M9 Qualcomm Snapdragon 810 MSM8994, Qualcomm Adreno 430, 32 GB eMMC Flash
 
Apple iPhone 6 Apple A8, PowerVR GX6450, 128 GB eMMC Flash
 
NVIDIA Shield Tablet P1761W Nvidia Tegra K1, NVIDIA Tegra K1 Kepler GPU, 16 GB iNAND Flash
 
Google Nexus 9 Nvidia Tegra K1 (Denver), NVIDIA Tegra K1 Kepler GPU, 32 GB eMMC Flash
 
Google Nexus 6 Qualcomm Snapdragon 805 APQ8084, Qualcomm Adreno 420, 32 GB eMMC Flash
 
Samsung Galaxy Note 4 Qualcomm Snapdragon 805 APQ8084, Qualcomm Adreno 420, 32 GB eMMC Flash
 
OnePlus One Qualcomm Snapdragon 801 MSM8974AC, Qualcomm Adreno 330, 64 GB eMMC Flash
 
Nokia Lumia 930 Qualcomm Snapdragon 800 MSM8974, Qualcomm Adreno 330, 32 GB eMMC Flash
 
HTC One M8 Qualcomm Snapdragon 801 MSM8974AB, Qualcomm Adreno 330, 16 GB iNAND Flash

* ... smaller is better

Max. Load
 34.3 °C
94 F
35.5 °C
96 F
38.2 °C
101 F
 
 34.4 °C
94 F
35.7 °C
96 F
38.4 °C
101 F
 
 34.4 °C
94 F
35.3 °C
96 F
37.6 °C
100 F
 
Maximum: 38.4 °C = 101 F
Average: 36 °C = 97 F
35.2 °C
95 F
35.7 °C
96 F
35.7 °C
96 F
35.4 °C
96 F
36.1 °C
97 F
35.7 °C
96 F
35.4 °C
96 F
35.7 °C
96 F
35.6 °C
96 F
Maximum: 36.1 °C = 97 F
Average: 35.6 °C = 96 F
Power Supply (max.)  31.4 °C = 89 F | Room Temperature 21.9 °C = 71 F | Voltcraft IR-260
(±) The average temperature for the upper side under maximal load is 36 °C / 97 F, compared to the average of 32.7 °C / 91 F for the devices in the class Smartphone.
(+) The maximum temperature on the upper side is 38.4 °C / 101 F, compared to the average of 35 °C / 95 F, ranging from 21.9 to 56 °C for the class Smartphone.
(+) The bottom heats up to a maximum of 36.1 °C / 97 F, compared to the average of 33.8 °C / 93 F
(+) In idle usage, the average temperature for the upper side is 30.8 °C / 87 F, compared to the device average of 32.7 °C / 91 F.

Energy & Battery Life

The HTC One M9's power consumption in standby and when shut off is exemplary. In idle mode, however, the smartphone's energy usage is quite high. The Samsung Galaxy S5 (0.3-1.1 W) achieves substantially superior results. Despite the One M9's high performance, its power consumption proves to be rather low under load, though given these results the smartphone isn't going to break any records in our battery tests. The One M9 neither supports Fast Charge nor wireless charging.

Power Consumption
Off / Standbydarklight 0 / 0.1 Watt
Idledarkmidlight 1.1 / 2 / 2.4 Watt
Load midlight 7.2 / 7.5 Watt
 color bar
Key: min: dark, med: mid, max: light        Voltcraft VC 870
Currently we use the Metrahit Energy, a professional single phase power quality and energy measurement digital multimeter, for our measurements. Find out more about it here. All of our test methods can be found here.

Verdict

In review: The HTC One M9. Test device courtesy of HTC Deutschland.
In review: The HTC One M9. Test device courtesy of HTC Deutschland.

Unfortunately, the HTC One M9 doesn't have anything truly revolutionary to offer, but it's clear that the manufacturer tried to maintain the smartphone's tried-and-true features, while making improvements where the predecessor received criticism.

The look and feel of the One M9 are top-notch and certainly meet the requirements for a premium product. The new camera will need to prove itself, and we're also intrigued to see whether HTC truly got a handle on the Snapdragon processor's legendary problems with overheating.

The most suspenseful question, however, is whether HTC can justify raising the recommended retail price by 50 Euros (~$54). The market price is sure to fall quickly, but users may be left with a bad taste in their mouths. Our comprehensive review is soon to follow.

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Daniel Schmidt, 2015-03-26 (Update: 2018-05-15)