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Brief information about compared phones: Palm Centro , Plum Trigger Plus IIIPalm 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 Trigger Plus III 2015 year of release. cpu Dual-core 1.0 GHz Cortex-A7. screen 3.5". with resolution 320x480. Smartphone has 1 megapixel front camera and 1 megapixel main camera . |
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| Display | Technology | TFT | TFT | |
| Touchscreen | resistive touchscreen | capacitive touchscreen | ||
| Display colors | 65K | 16M | ||
| Screen size | 2.25" inch | 3.5" inch | ||
| Screen area | 16.3 cm2 | 36.5 cm2 | ||
| Screen format | 1:1 (height:width) | 3:2 (height:width) | ||
| Screen to body ratio | 28.5% | 50.3% | ||
| Screen resolution | 320 x 320 px | 320 x 480 px | ||
| PPI /points per inch/ | 201 PPI | 165 PPI | ||
| Camera and Video | Rear camera, main | 1.3 MP, Single | 1.3 MP, Single | |
| Camera specs | 1.3 MP | 1.3 MP, AF | ||
| Functions | LED flash, panorama, HDR | |||
| Video | Yes | Yes | ||
| Front camera, selfie | 0 MP, | 1.3 MP, Single | ||
| Specifications | 1.3 MP | |||
| Performance | Operating system OS | Palm OS 5.4.9 | Android 4.4.2 (KitKat) | |
| Chipset | Mediatek MT6572M (28 nm) | |||
| Processor CPU | 32-bit Intel XScale PXA270 312 MHz | Dual-core 1.0 GHz Cortex-A7 | ||
| Graphics processor GPU | Mali-400 | |||
| External memory | microSD, up to 4 GB (dedicated slot) | microSD, up to 32 GB | ||
| Internal memory | 64 MB | 512 MB, 256 MB RAM | ||
| General specs | Release date | 2008, February | 2015, January | |
| Dimensions (HxWxD) | 107.2 Х 53.5 Х 18.6 mm | 117.8 Х 61.5 Х 10.5 mm | ||
| Weight | 124 g | 97.5 g | ||
| Colors | Obsidian, Glacier, Midnight, Cobalt, Onyx, Electric Blue, Rose, Olive | Black, White, Red, Blue | ||
| Battery | 1150 mAh, Removable Li-Ion | 1300 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 780 h Talking time- Up to 14 h | ||
| Communication and Connectivity | SIM card | Mini-SIM | Dual SIM | |
| Network | Show all network frequencies: | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | ||
| Speed | HSPA | |||
| GPRS | Class 10 | Class 12 | ||
| Edge | Class 10 | Class 12 | ||
| Wi-Fi | No | Wi-Fi 802.11 b/g/n, hotspot | ||
| GPS | No | Yes, with A-GPS | ||
| NFC | ||||
| USB | Proprietary | microUSB | ||
| 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 | Stereo 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 Also known as Plum Z306 | |
