HTC One M9 vs HTC U Ultra
| Type | Touch | Touch |
| Dimensions | 144.60 x 69.70 x 9.61 mm | 162.41 x 79.79 x 7.99 mm |
| Weight | 157.00 g | 170.00 g |
| Display size | 5.00" | 5.70" |
| Display | Color / Super LCD 16M colors 1920 x 1080 px (5.00") 441 ppi | Color / Super LCD 16M colors 1440 x 2560 px (5.70") 515 ppi |
| Display protection | Corning Gorilla Glass Buy screen protector
 | Corning Gorilla Glass Buy screen protector
|
| Additional display |  | Color / Super LCD 16M colors 1040 x 160 px (2.05") |
| Protection of the secondary display | | |
| Talk time (max.) | 2G: 1520 min. (25.3 h) 3G: 1300 min. (21.7 h) | 3G: 1560 min. (26.0 h) 4G: 1560 min. (26.0 h) |
| Stand-by (max.) | 2G: 391 h. (16.3 days) 3G: 402 h. (16.8 days) | 3G: 312 h. (13.0 days) 4G: 312 h. (13.0 days) |
| Standard battery | Li-Po 2840 mAhBuy powerbank
| Li-Po 3000 mAhBuy powerbank
|
| Quick battery charging | Quick Charge 2.0 | Quick Charge 3.0 |
| Wireless battery charging | | |
| Internal memory | 32 GB | 64 GB, 128 GB |
| RAM memory | 3 GB | 4 GB |
| Memory cards |  microSD, microSDHC, microSDXC up to 128 GBBuy memory card | microSD, microSDHC, microSDXC up to 2000 GBBuy memory card |
| Operating system | Android 5.0 Lollipop | Android 7.0 Nougat |
| Interface | Sense 7 | Sense |
| Processor | Qualcomm Snapdragon 810 8994 | Qualcomm Snapdragon 821 8996 |
| Processor clock | 2000 MHz | 2150 MHz |
| GPU | Adreno 430 @650 MHz | Adreno 530 @653 MHz |
| Touchscreen | | |
| DualSIM | | |
| SIM cards standard | SingleSIM(nanoSIM) | SingleSIM(nanoSIM) |
| Announced | 1Q 2015 | 1Q 2017 |
| Other names | - | - |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 900 1900 2100 | 850 900 1700 1900 2100 |
| LTE standard | FDD LTE: 2600, 2100, 1800, 900, 850, 800, 700 TDD LTE: 2600, 2500, 2300 | FDD LTE: 2600, 2100, 1900, 1800, 1700, 900, 850, 800, 700 TDD LTE: 2600, 2500, 2300, 1900 |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Photo matrix | 20 Mpx | 12 Mpx |
| Resolution | 5248x3936 px |  |
| Optical zoom | | |
| Flash | LED | 2x LED |
| Dual-colour LED flash | | 1+1 |
| Video resolution | 3840x2160 px | 3840x2160 px |
| Video formats | H.263, H.264, MPEG4 - 30 fps | H.263, H.264, MPEG4 - 30 fps |
| Additional | AF, f/2.2 | AF, Laser AF, OIS, f/1.8 |
CAMERAS - FRONT
| First camera | | |
| Photo matrix | 4 Mpx | 16 Mpx |
| Resolution | 2688x1520 px | |
| Optical zoom | | |
| Flash | | LED |
| Dual-colour LED flash | | |
| Video resolution | | 1920x1080 px |
| Video formats | H.263, H.264, MPEG4 - 30 fps | H.263, H.264, MPEG4 - 30 fps |
| Additional | - | FF |
SENSORS
| Accelerometer | | |
| Proximity | | |
| Light | | |
| Magnetometer | | |
| Gyroscope | | |
| Barometer | | |
| Altimeter | | |
| Gravity | | |
| Hall-effect | | |
| Iris scanner | | |
| Fingerprint scanner | | |
| Thermometer | | |
| Hygrometer | | |
Data transfer
| xHTML | | |
| WAP | v2.0 | v2.0 |
| HSCSD | | |
| HSDPA | 42.00 Mbit/s | 42.20 Mbit/s |
| HSUPA | 5.76 Mbit/s | 5.76 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | - | 603.00 Mbit/s |
| LTE UP | 51.00 Mbit/s | 51.00 Mbit/s |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v4.1 | v4.2 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | v802.11 a/b/g/n/ac | v802.11 a/b/g/n/ac |
| WiFi frequencies | 2,4 GHz; 5 GHz | 2,4 GHz; 5 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | v2.0 | v3.1 Type-C |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | XT9 | T9 |
| Swype | | |
| e-mail client | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | z RDS | |
| MP3 | | |
| Stereo speakers | 2 | |
| Audio Jack | 3.5 mm | |
| HD Voice | | |
| Sound formats | AAC, AMR, FLAC, M4A, MIDI, OGG, WAV, WMA | AAC, AAC+, AMR, FLAC, MKA, OGG, WAV, eAAC+ |
| Polyphony | 72 voices | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | ART | ART |
| Videophone | | |
| DVB-H television | | |
| TV-Out | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Currency converter | | |
| Organizer | | |
| Calendar | | |
| Flight mode | | |
| SyncML | | |
| Data and fax | | |
| Screensaver | | |
| Themes | | |
| Interchangeable covers | | |
| Voice dial | | |
| Speakerphone | | |
| Recorder | | |
| Vibrations | | |