I-Tel India Petrus vs CAT S61
| Type | Touch | Touch |
| Waterproofness & dust-resistance |  | IP68 |
| Dimensions | 108.60 x 55.00 x 13.80 mm | 150.00 x 76.00 x 13.00 mm |
| Weight | 135.00 g | 265.00 g |
| Display size | 3.20" | 5.20" |
| Display | Color / TFT 240 x 400 px (3.20") 146 ppi | Color / IPS TFT 16M colors 1080 x 1920 px (5.20") 424 ppi |
| Display protection |   | Corning Gorilla Glass Buy screen protector
|
| Additional display | | |
| Protection of the secondary display | | |
| Talk time (max.) | 2G: 300 min. (5.0 h) | |
| Stand-by (max.) | 2G: 220 h. (9.2 days) | |
| Standard battery | | Li-Ion 4500 mAhBuy powerbank
|
| Quick battery charging | | Quick Charge 4.0 |
| Wireless battery charging | | |
| Internal memory | | 64 GB |
| RAM memory | | 4 GB |
| Memory cards |  microSD | microSD, microSDHC |
| Operating system | Android | Android 8.0 Oreo |
| Processor | Marvell | Qualcomm Snapdragon 630 |
| Processor clock | 624 MHz | 2200 MHz |
| GPU | - | Adreno 508 |
| Touchscreen | | |
| DualSIM | | |
| SIM cards standard | | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | nd | dual standby |
| Announced | | 1Q 2018 |
| Other names | - | - |
| GSM frequencies | 900 1800 1900 | 850 900 1800 1900 |
| UMTS | | 850 900 1700 1900 2100 |
| LTE standard | | FDD LTE: 2600, 2100, 1900, 1800, 900, 850, 800, 700 TDD LTE: 2600, 2500, 2300, 1900 |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Photo matrix | 3.2 Mpx | 16 Mpx |
| Resolution | 2048x1536 px | |
| Optical zoom | | |
| Flash | | 2x LED |
| Dual-colour LED flash | | |
| Video resolution | | 3840x2160 px |
| Video formats | H.263, MPEG4 | MPEG4, H.263, H.264 - 30 fps |
| Additional | - | AF |
CAMERAS - FRONT
| First camera | | |
| Photo matrix | nd | 8 Mpx |
| Resolution | nd | 3264x2448 px |
| Optical zoom | nd | |
| Flash | nd | |
| Dual-colour LED flash | nd | |
| Video formats | nd | MPEG4, H.263, H.264 - 30 fps |
| Additional | nd | - |
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 | | |
| HSUPA | | |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | 603.00 Mbit/s |
| LTE UP | | - |
| WIMAX+ | | |
| GPRS | class 10 | |
| EDGE | class 10 | |
| Bluetooth | v2.0 | v5.0 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | | v802.11 a/b/g/n |
| WiFi frequencies | | 2,4 GHz; 5 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | v2.0 | v2.0 Type-C |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| Galileo | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | T9 | XT9 |
| Swype | | |
| e-mail client | | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | | |
| MP3 | | |
| Stereo speakers | | |
| Audio Jack | 3.5 mm | 3.5 mm |
| HD Voice | | |
| Sound formats | | AAC, AAC+, AMR, WAV, eAAC+ |
| Polyphony | 64 voices | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | Dalvik | 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 | | |