HTC U11 vs I Kall S1
| Type | Touch | Touch |
| Waterproofness & dust-resistance | IP67 |  |
| Dimensions | 153.90 x 75.90 x 7.90 mm | - |
| Weight | 169.00 g | 218.00 g |
| Display size | 5.50" | 6.80" |
| Display | Color / Super LCD 16M colors 1440 x 2560 px (5.50") 534 ppi | Color / IPS TFT 16,7M colors 720 x 1640 px (6.80") 263 ppi |
| Display protection | Corning Gorilla Glass Buy screen protector
 |  |
| Additional display | | |
| Protection of the secondary display | | |
| Talk time (max.) | 3G: 1470 min. (24.5 h) 4G: 1470 min. (24.5 h) | |
| Stand-by (max.) | 3G: 336 h. (14.0 days) 4G: 336 h. (14.0 days) | |
| Standard battery | Li-Ion 3000 mAhBuy powerbank
| Li-Ion 6000 mAhBuy powerbank
|
| Quick battery charging | Quick Charge 3.0 | |
| Wireless battery charging | | |
| Internal memory | 64 GB, 128 GB | 128 GB |
| End-user memory | 53.21 GB, 117.21 GB | |
| RAM memory | 4 GB, 6 GB | 6 GB |
| Memory cards |  microSD, microSDHC, microSDXC up to 2000 GBBuy memory card | microSD, microSDHC, microSDXC up to 512 GBBuy memory card |
| Operating system | Android 7.1 Nougat | Android 13 |
| Interface | Sense | - |
| Processor | Qualcomm Snapdragon 835 8998 | Unisoc Tiger T606 UMS9230 T7200 |
| Processor clock | 2450 MHz | 1600 MHz |
| GPU | Adreno 540 | Mali-G57 MP1 @650 MHz |
| Touchscreen | | |
| DualSIM | | |
| SIM cards standard | SingleSIM(nanoSIM) | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | nd | dual standby |
| Other names | - | - |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 900 1900 2100 | 850 900 1900 2100 |
| LTE standard | FDD LTE: 2600, 2100, 1800, 1700, 1500, 900, 850, 800, 700 TDD LTE: 2600, 2500, 2300, 1900 | |
| Standard 5G | | |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Camera type | | Standard |
| Photo sensor model | Sony IMX362 | |
| Photo matrix | 12 Mpx | 21 Mpx |
| Resolution | 4032x3024 px | |
| Optical zoom | | |
| Flash | 2x LED | LED |
| Dual-colour LED flash | 1+1 | |
| Video resolution | 3840x2160 px | 1920x1080 px |
| Video formats | H.263, H.264, H.265, MPEG4 - 30 fps | |
| Additional | AF, EIS, OIS, f/1.7 | AF |
| Second camera | | |
| Camera type | nd | Wide-angle |
| Photo matrix | nd | 5 Mpx |
| Optical zoom | nd | |
| Flash | nd | LED |
| Dual-colour LED flash | nd | |
| Additional | nd | FF |
| Third camera | | |
| Camera type | nd | Macro |
| Photo matrix | nd | 2 Mpx |
| Optical zoom | nd | |
| Flash | nd | LED |
| Dual-colour LED flash | nd | |
| Additional | nd | FF |
CAMERAS - FRONT
| First camera | | |
| Camera type | | Portrait |
| Photo matrix | 16 Mpx | 8 Mpx |
| Resolution | 4656x3496 px | |
| Optical zoom | | |
| Flash | | |
| Dual-colour LED flash | | |
| Video resolution | 1920x1080 px | |
| Video formats | H.263, H.264, H.265, MPEG4 - 30 fps | |
| Additional | f/2.0 | 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 | 42.20 Mbit/s | 42.20 Mbit/s |
| HSUPA | 5.76 Mbit/s | 5.76 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | 979.00 Mbit/s | - |
| LTE UP | - | - |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v4.2 | v5.0 |
| 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 | v3.1 Type-C | v2.0 Type-C |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| Galileo | | |
| QZSS | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | T9 | T9 |
| Swype | | |
| e-mail client | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | | |
| MP3 | | |
| Stereo speakers | 2 | |
| Audio Jack | | |
| HD Voice | | |
| Sound formats | 3GP, AAC, FLAC, M4A, MID, MKV, MP4, OGG, WAV | AAC, AAC+, AMR, MID, WAV, eAAC+ |
| Polyphony | | |
| 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 | | |