Celkon U Feel 4G vs Siemens U15
| Formfaktor | Touchscreen | Bartype / Klassisch | Bartype / Klassisch | Touchscreen |
| Größe | 143.00 x 71.70 x 9.50 mm | 136.00 x 53.00 x 24.00 mm | 154.00 x 55.00 x 29.00 mm | 154.70 x 79.20 x 8.80 mm |
| Gewicht | 120.00 g | 140.00 g | 184.00 g | 220.00 g |
| Bildschirmdiagonale | 5.00" | - | - | 5.70" |
| Anzeige | Farbdisplay / IPS TFT 16M Farben 60 Hz 720 x 1280 px (5.00") 294 ppi | Farbdisplay / TFT 64k Farben 176 x 220 px | Farbdisplay / LCD 4k Farben 176 x 220 px | Farbdisplay / LTPS TFT 16M Farben 1080 x 1920 px (5.70") 386 ppi |
| Displayschutz |   | | | |
| Sekundäranzeige | | | | |
| Schutz des Touch-Displays | | | | |
| Gesprächszeit | 2G: Bis zu 1320 Min (22.0 Std.) | 2G: Bis zu 110 Min (1.8 Std.) | 2G: Bis zu 80 Min (1.3 Std.) |  |
| Stand-by | | 2G: 250 Std. (10.4 Tage) | 2G: 120 Std. (5.0 Tage) | |
| Standard-Akku | Li-Ion 2500 mAhPowerbank kaufen | Li-Po 800 mAhPowerbank kaufen | Li-Po 800 mAhPowerbank kaufen | Li-Ion 3700 mAhPowerbank kaufen |
| Schnelladefunktion | | | | |
| Kabelloses Laden | | | | |
| Telefonbucheinträge | | 500 | | |
| Interner Speicher | 16 GB | 64 MB | | 64 GB |
| RAM-Speicher | 2 GB | | | 4 GB |
| MicroSD-Steckplatz |  microSD, microSDHC bis zu 32 GBSpeicherkarte kaufen | | MMC | microSD, microSDHC, microSDXC bis zu 128 GBSpeicherkarte kaufen |
| Betriebssystem | Android 7.0 Nougat | - | - | Android 7.0 Nougat |
| Prozessor-Name | Spreadtrum SC9832A | - | - | MediaTek MT6750T |
| Prozessor-Geschwindigkeit | 1300 MHz | - | - | 1500 MHz |
| GPU | - | - | - | ARM Mali-T860 MP2 @500 |
| Touchscreen | | | | |
| SAR-Wert | | 0,35 W/kg | 0,98 W/kg | |
| Dual SIM | | | | |
| Standard der SIM-Karten | DualSIM(microSIM, microSIM) | | | DualSIM(nanoSIM, nanoSIM) |
| DualSIM-Modus | dual standby | nd | nd | dual standby |
| Hybrid Dual-SIM | | nd | nd | nanoSIM, microSD |
| Gestartet | | | | II. Quartal 2017 |
| Andere Namen | UFeel 4G | - | - | - |
| GSM Band | 850 900 1800 1900 | 900 1800 1900 | 900 1800 1900 | 850 900 1800 1900 |
| UMTS Band | 2100 | 2100 | 2100 | 900 2100 |
| LTE-Standard | FDD LTE: 1800, 850 TDD LTE: 2300 | | | FDD LTE: 2600, 2100, 1800, 900, 800 |
| 5G-Standard | | | | |
| CDMA Band | | | | |
| TD-SCDMA-Standard | | | | |
| UMA-Technik | | | | |
KAMERAS - RÜCKSEITE
| Erste Kamera | | | | |
| Kameratyp | Standard | | | |
| Sensorauflösung | 8 Mpx | | | 13 Mpx |
| Standbildauflösungen | 3264x2448 px | 640x480 px | 640x480 px | 4128x3096 px |
| Optischer Zoom | | | | |
| Digitaler Zoom | | 3x | | |
| Fotolicht | LED | | | LED |
| Zweifarbiger LED-Blitz | | | | |
| Video-Auflösung | 1280x720 px | 176x144 px | 176x144 px | |
| Videoformate | H.263, H.264, MPEG4 | MPEG4 | MPEG4 | MPEG4, H.263, H.264 |
| Zusätzlich | AF | - | - | AF |
KAMERAS - FRONTSEITE
| Erste Kamera | | | | |
| Kameratyp | Porträtobjektiv | nd | nd | |
| Sensorauflösung | 5 Mpx | nd | nd | 13 Mpx |
| Standbildauflösungen | 2560x1920 px | nd | nd | 4128x3096 px |
| Optischer Zoom | | nd | nd | |
| Fotolicht | | nd | nd | |
| Zweifarbiger LED-Blitz | | nd | nd | |
| Video-Auflösung | 640x480 px | nd | nd | |
| Videoformate | H.263, H.264, MPEG4 | nd | nd | MPEG4, H.263, H.264 |
| Zusätzlich | FF | nd | nd | AF |
SENSOREN
| Beschluenigungsmesser | | | | |
| Abstandssensor | | | | |
| Lichtsensor | | | | |
| Magnetometer | | | | |
| Gyroskop | | | | |
| Barometer | | | | |
| Höhenmesser | | | | |
| Gravitationssensor | | | | |
| Hall-Sensor | | | | |
| Iris-Scanner | | | | |
| Fingerabdruckscanner | | | | |
| Thermometer | | | | |
| Hygrometer | | | | |
Datenübertragung
| xHTML | | | | |
| WAP | v2.0 | v2.0 | v2.0 | v2.0 |
| HSCSD | | | | |
| HSDPA | 21.10 Mbit/s | | | |
| HSUPA | 5.76 Mbit/s | | | |
| HSPA | | | | |
| HSPA+ | | | | |
| LTE DL | - | | | - |
| LTE UP | 51.00 Mbit/s | | | 51.00 Mbit/s |
| WIMAX+ | | | | |
| GPRS | | Klasse 8 | Klasse 8 | |
| EDGE | | | | |
| Bluetooth | v4.1 | | | |
| A2DP Profile | | | | |
| HDMI | | | | |
| WiFi | v802.11 b/g/n | | | v802.11 b/g/n |
| WLAN-Frequenzen | 2,4 GHz | | | 2,4 GHz |
| WiFi Direct | | | | |
| WiFi Display | | | | |
| DLNA | | | | |
| Miracast | | | | |
| WiFi-Hotspot | | | | |
| IrDA | | | | |
| USB | v2.0 | | | |
| GPS | | | | |
| A-GPS | | | | |
| GLONASS | | | | |
| Beidou | | | | |
| Galileo | | | | |
| QZSS | | | | |
| NFC | | | | |
KOMMUNIKATION UND MESSAGING
| Anklopfen | | | | |
| Telefonkonferenz | | | | |
| Rufumleitung | | | | |
| Push To Talk | | | | |
| Instant Messenger | | | | |
| SMS | | | | |
| EMS | | | | |
| MMS | | | | |
| Worterkennung | T9 | T9 | T9 | XT9 |
| Swype | | | | |
| E-Mail Funktion | POP3, IMAP4, SMTP | | | POP3, IMAP4, SMTP |
| QWERTY-Tastatur | | | | |
| RSS-Reader | | | | |
Multimedia
| Radio | | | | |
| MP3-Player | | | | |
| Stereo-Lautsprecher | | | | |
| Audio Jack | 3.5 mm | | | 3.5 mm |
| HD Voice | | | | |
| Audioformate | AAC, AAC+, AMR, MID, WAV, eAAC+ | | | AAC, AAC+, AMR, WAV, eAAC+ |
| Polyphoner Klingeltöne | | | | |
| Video Klingeltöne | | | | |
| Klingelton Komponisten | | | | |
| Spiele | | | | |
| Java | ART | MIDP 1.0 | MIDP 2.0 | ART |
| Videotelefoniegespräche | | | | |
| DVB-H TV | | | | |
| TV-Ausgang | | | | |
PIM UND ZUSÄTZLICHE FUNKTIONEN
| Uhr | | | | |
| Stoppuhr | | | | |
| Alarmfunktion | | | | |
| Rechner | | | | |
| Währungsumrechner | | | | |
| Organizer | | | | |
| Kalender | | | | |
| Offline-Modus | | | | |
| SyncML | | | | |
| Daten und Fax | | | | |
| Bildschirmschoner | | | | |
| Themen | | | | |
| Oberschale | | | | |
| Sprachsteuerung | | | | |
| Freisprechfunktion | | | | |
| Sprachmemo | | | | |
| Vibrationsalarm | | | | |