| Global Score | |
| 71.9 | 77 |
| Basic Information | |
| HTC | HTC |
| Android 5.0, 4.4.3, 4.4 | -- |
| 2014-03-25 | 2017-02-21 |
| 5.76 x 2.78 x 0.37 inches | 6.39 x 3.14 x 0.31 inches |
| 5.64 ounces | 6.00 ounces |
| Blue, Gold, Gray, Pink and Red | 16 777 216 |
| Aluminium | Aluminum and Glass |
| -- | Scratch-Resistant Glass |
| $ 325.00 | $ 749.00 |
| Display / Screen | |
| 5 inches | 5.7 inches |
| 1080 x 1920 pixels (Full HD) | 2560 x 1440 pixels (Quad HD / 2K) |
| IPS LCD | S-LCD 5 |
| 441 pixels per inch | 515 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9.1 | 8.5 |
| Performance | |
| Qualcomm Snapdragon 801 chipset | Qualcomm Snapdragon 821 MSM8996 Pro-AB chipset |
| Krait 400 (Quad-Core 2500 MHz) processor | Kryo, 64-bit (Quad-Core 2150 MHz) processor |
| 2 GB RAM | 4 GB RAM |
| Adreno 330 (450 MHz) GPU | Adreno 530 GPU |
| 9.36 | 8.91 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSD, microSDHC, microSDXC (up to 128 GB) external memory slot | microSDXC (up to 1,95 TB) external memory slot |
| 8.12 | 14.66 |
| Camera | |
| 4.00 MP + 5.00 MP | 12.00 MP + 16.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 28.00mm focal length | -- |
| 0.33 inches (1/3") sensor | 0.43 inches (1/2.3") sensor |
| 1920 x 1080 (60 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1920 x 1080 (120 fps) (Full HD) slow motion video |
| 8.36 | 9.9 |
| Networks | |
| Wi-Fi | Wi-Fi |
| -- | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA, EDGE, GPRS, GSM and CDMA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.3 | 6.7 |
| Battery Life | |
| 2600mAh Li-Polymer Battery | 3000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 20 hours talk time | -- |
| 4.56 | 4.96 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 4.2 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| -- | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
The HTC U Ultra has an overall score of 77, which is a little bit better than the HTC One (M8)'s general score of 71.9. Even though HTC U Ultra is a bit heavier than the HTC One (M8), it's thinner and way newer. The HTC One (M8) features a little better processing power than HTC U Ultra, because although it has 2 GB lesser RAM, and they both have the same number of cores, the HTC One (M8) also counts with an additional graphics processing unit.
HTC One (M8) features a bit more vivid screen than HTC U Ultra, although it has a just a bit worse screen density, a bit smaller display and a lot lower resolution of 1920 x 1080 pixels. The HTC U Ultra counts with a much greater storage for applications and games than HTC One (M8), because it has an external memory slot that supports a maximum of 1,95 TB and more internal storage.
The HTC U Ultra features just a little bit longer battery lifetime than HTC One (M8), because it has a 15 percent more battery capacity. HTC U Ultra counts with a better camera than HTC One (M8), because it has a way larger back-facing camera sensor which provides a lot better photo and video quality, a bigger aperture for better captures and video in poorly lited situations, a much better video quality and a back facing camera with lot more mega-pixels.
Although HTC U Ultra is a better device, it costs a lot more money than HTC One (M8), and it doesn't have such a good quality/price relation as the HTC One (M8). So if you want that extra specs and features, you can buy HTC U Ultra, otherwise you can save some dollars and buy the HTC One (M8), letting go some features and specifications.
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