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Brief information about compared phones: Palm Centro , Plum CompassPalm Centro 2008 year of release. cpu 32-bit Intel XScale PXA270 312 MHz. screen 2.25". with resolution 320x320. Smartphone has 1 megapixel main camera . Plum Compass 2016 year of release. cpu Quad-core 1.3 GHz Cortex-A7. screen 5". with resolution 720x1280. Smartphone has 2 megapixel front camera and 8 megapixel main camera . |
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| Display | Technology | TFT | IPS LCD | |
| Touchscreen | resistive touchscreen | capacitive touchscreen | ||
| Display colors | 65K | 16M | ||
| Screen size | 2.25" inch | 5" inch | ||
| Screen area | 16.3 cm2 | 68.9 cm2 | ||
| Screen format | 1:1 (height:width) | 16:9 (height:width) | ||
| Screen to body ratio | 28.5% | 65.0% | ||
| Screen resolution | 320 x 320 px | 720 x 1280 px | ||
| PPI /points per inch/ | 201 PPI | 294 PPI | ||
| Camera and Video | Rear camera, main | 1.3 MP, Single | 8 MP, Single | |
| Camera specs | 1.3 MP | 8 MP, AF | ||
| Functions | LED flash | |||
| Video | Yes | Yes | ||
| Front camera, selfie | 0 MP, | 2 MP, Single | ||
| Specifications | 2 MP | |||
| Performance | Operating system OS | Palm OS 5.4.9 | Android 6.0 (Marshmallow) | |
| Chipset | Spreadtrum SC7731C | |||
| Processor CPU | 32-bit Intel XScale PXA270 312 MHz | Quad-core 1.3 GHz Cortex-A7 | ||
| External memory | microSD, up to 4 GB (dedicated slot) | microSD, up to 32 GB | ||
| Internal memory | 64 MB | 8 GB, 1 GB RAM | ||
| General specs | Release date | 2008, February | 2016, December | |
| Dimensions (HxWxD) | 107.2 Х 53.5 Х 18.6 mm | 146 Х 72.6 Х 9.8 mm | ||
| Weight | 124 g | 168.7 g | ||
| Colors | Obsidian, Glacier, Midnight, Cobalt, Onyx, Electric Blue, Rose, Olive | Black, Blue, Red, Gold, White | ||
| Battery | 1150 mAh, Removable Li-Ion | 2000 mAh, Removable Li-Ion | ||
| Approximate price | 70 EUR | |||
| Battery life | Stand by time- Up to 300 h Talking time- Up to 4 h | Stand by time- Up to 620 h (2G) / Up to 600 h (3G) Talking time- Up to 25 h (2G) / Up to 20 h (3G) | ||
| Communication and Connectivity | SIM card | Mini-SIM | Dual SIM (Micro-SIM, dual stand-by) | |
| Network | Show all network frequencies: | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | ||
| Speed | HSPA 21.1/5.76 Mbps | |||
| GPRS | Class 10 | Yes | ||
| Edge | Class 10 | Yes | ||
| Wi-Fi | No | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | ||
| GPS | No | Yes, with A-GPS | ||
| NFC | ||||
| USB | Proprietary | microUSB 2.0 | ||
| Bluetooth | 1.2, A2DP | 4.0, A2DP | ||
| Harmful irradiation | SAR - 0.27 W/kg (head) 0.22 W/kg (body) | |||
| Music and Audio | Radio | No | FM radio | |
| Headphone jack | No | Yes | ||
| Others | 5-way navigation button | |||
| Other features | Dop | , Infrared port - Document editor (Word, Excel, PowerPoint, PDF) -MP3 player -Organizer -Voice memo | Sensors Accelerometer | |
