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Brief information about compared phones: Acer DX900 , BLU R2 PlusAcer DX900 2009 year of release. cpu 533 MHz Samsung S3C 6410. screen 2.8". with resolution 480x640. Smartphone has 0 megapixel front camera and 3 megapixel main camera . BLU R2 Plus 2017 year of release. cpu Octa-core 1.3 GHz. screen 5.5". with resolution 1080x1920. Smartphone has 13 megapixel front camera and 13 megapixel main camera . |
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| Display | Technology | TFT | IPS LCD | |
| Touchscreen | resistive touchscreen | capacitive touchscreen | ||
| Display colors | 65K | 16M | ||
| Screen size | 2.8" inch | 5.5" inch | ||
| Screen area | 24.3 cm2 | 83.4 cm2 | ||
| Screen format | 4:3 (height:width) | 16:9 (height:width) | ||
| Screen to body ratio | 37.9% | 69.6% | ||
| Screen resolution | 480 x 640 px | 1080 x 1920 px | ||
| PPI /points per inch/ | 286 PPI | 401 PPI | ||
| Camera and Video | Rear camera, main | 3.15 MP, Single | 13 MP, Single | |
| Camera specs | 3.15 MP, AF | 13 MP, f/2.0, 1/3'', 1.12µm, PDAF | ||
| Functions | Dual-LED flash | Dual-LED dual-tone flash | ||
| Video | Yes | 1080p@30fps | ||
| Front camera, selfie | 0.3 MP, Single | 13 MP, Single | ||
| Specifications | VGA videocall camera | 13 MP | ||
| Performance | Operating system OS | Microsoft Windows Mobile 6.1 Professional | Android 7.0 (Nougat) | |
| Chipset | Mediatek MT6753 (28 nm) | |||
| Processor CPU | 533 MHz Samsung S3C 6410 | Octa-core 1.3 GHz | ||
| Graphics processor GPU | Mali-T720 | |||
| External memory | microSD (dedicated slot) | microSD, up to 64 GB | ||
| Internal memory | 128 MB RAM, 256 MB ROM | 32 GB, 3 GB RAM | ||
| Antutu 7 score | 38456 | |||
| GeekBench 4 Single Core | 606 | |||
| GeekBench 4 Multi-Core | 2464 | |||
| General specs | Release date | 2009, February | 2017, November | |
| Dimensions (HxWxD) | 106 Х 60.5 Х 17 mm | 155.7 Х 77 Х 9.2 mm | ||
| Weight | 147 g | 167 g | ||
| Colors | Black | Black, Gold | ||
| Battery | 1530 mAh, Removable Li-Po | 3000 mAh, Non-removable Li-Po | ||
| Approximate price | 90 EUR | |||
| Battery life | Stand by time- Up to 150 h Talking time- Up to10 h | Stand by time- Up to 725 h (2G) / Up to 625 h (3G) Talking time- Up to 26 h (2G) / Up to 16 h (3G) | ||
| Communication and Connectivity | SIM card | Dual SIM (Mini-SIM) | Dual SIM (Micro-SIM) | |
| Network | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 GSM 900 / 1800 / 1900 - SIM 2 | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 7(2600), 12(700), 17(700), 28(700) | ||
| Speed | HSPA 7.2/0.384 Mbps | HSPA 42.2/11.5 Mbps, LTE Cat4 150/50 Mbps | ||
| GPRS | Class 10 | Yes | ||
| Edge | Class 10 | Yes | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n, hotspot | ||
| GPS | Yes, SiRF Star III chipset | Yes, with A-GPS | ||
| NFC | Super AMOLED | |||
| USB | miniUSB | microUSB 2.0 | ||
| Bluetooth | microUSB 2.0, A2DP | 4.0, A2DP | ||
| Music and Audio | Radio | panorama | FM radio | |
| Headphone jack | panorama | Yes | ||
| Others | Handwriting recognition | |||
| Other features | Dop | Sensors Accelerometer Pocket Office -Voice memo -MP3 player Also known as Acer Tempo DX900, Acer Tempo X960 | Sensors Fingerprint (rear-mounted), accelerometer, proximity, compass | |
