Comparison between:
- Ecoo Aurora Plus
- Mijue M880
- Xiaomi Redmi Note 2
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Ecoo Aurora Plus | Mijue M880 | Xiaomi Redmi Note 2 | |
 |  |  Prices | |
| Model alias | E04 (3GB) | - | Hongmi Note 2 Red Rice Note 2 |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 77.5 mm 7.75 cm 0.254 ft 3.051 in | 78.2 mm 7.82 cm 0.257 ft 3.079 in | 76 mm 7.6 cm 0.249 ft 2.992 in |
| Height | 156.7 mm 15.67 cm 0.514 ft 6.169 in | 155 mm 15.5 cm 0.509 ft 6.102 in | 152 mm 15.2 cm 0.499 ft 5.984 in |
| Thickness | 9.3 mm 0.93 cm 0.031 ft 0.366 in | 7.8 mm 0.78 cm 0.026 ft 0.307 in | 8.25 mm 0.825 cm 0.027 ft 0.325 in |
| Weight | 160 g 0.35 lbs 5.64 oz | 160 g 0.35 lbs 5.64 oz | 160 g 0.35 lbs 5.64 oz |
| Volume | 112.94 cm³ 6.86 in³ | 94.54 cm³ 5.74 in³ | 95.3 cm³ 5.79 in³ |
| Colors | White Blue | Black White | White Blue Black Yellow Pink |
| Body materials | Plastic | Plastic | Plastic Magnesium alloy |
SIM card
The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.
| SIM card type | Mini-SIM Micro-SIM | Mini-SIM Micro-SIM | Micro-SIM |
| Number of SIM cards | 2 | 2 | 2 |
| Features | Dual SIM stand-by (Both cards are active. When one is busy, the other is not active) | Dual SIM stand-by (Both cards are active. When one is busy, the other is not active) | Dual SIM stand-by (Both cards are active. When one is busy, the other is not active) |
Networks
A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other.
| GSM | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz | GSM 900 MHz GSM 1800 MHz GSM 1900 MHz |
| W-CDMA | W-CDMA 900 MHz W-CDMA 2100 MHz | W-CDMA 850 MHz W-CDMA 2100 MHz | - |
| TD-SCDMA | - | - | TD-SCDMA 1880-1920 MHz TD-SCDMA 2010-2025 MHz |
| UMTS | - | - | UMTS 850 MHz UMTS 900 MHz UMTS 1900 MHz UMTS 2100 MHz |
| LTE | LTE 800 MHz LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz | - | LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz LTE-TDD 1900 MHz (B39) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) |
Mobile network technologies and bandwidth
Communication between devices within mobile networks is realized via various generations of network technologies, which provide different bandwidth.
| Mobile network technologies | UMTS EDGE GPRS HSPA+ LTE Cat 4 | UMTS EDGE GPRS HSPA+ | UMTS EDGE GPRS HSPA+ LTE Cat 4 TD-SCDMA TD-HSDPA |
Operating system
Operating system is the system software, which manages and controls the functioning of the hardware components of the device.
| Operating system (OS) | Android 5.0 Lollipop | Android 4.4.2 KitKat | MIUI V7 (Android 5.0 Lollipop) MIUI V7.2 MIUI V9 |
System on Chip (SoC)
A system on a chip (SoC) includes into a single chip some of the main hardware components of the mobile device.
| SoC | MediaTek MT6752 | MediaTek MT6582M | MediaTek Helio X10 (MT6795M) |
| Process technology | 28 nm | 28 nm | 28 nm |
| CPU | 8x 1.7 GHz ARM Cortex-A53 | 4x 1.3 GHz ARM Cortex-A7 | 8x 2.0 GHz ARM Cortex-A53 |
| CPU bits | 64 bit | 32 bit | 64 bit |
| Instruction set | ARMv8-A | ARMv7 | ARMv8 |
| Level 1 cache memory (L1) | 32 KB + 32 KB | 32 KB + 32 KB | 256 KB + 256 KB |
| Level 2 cache memory (L2) | 512 KB 0.5 MB | 512 KB 0.5 MB | 2048 KB 2 MB |
| CPU cores | 8 | 4 | 8 |
| CPU frequency | 1700 MHz | 1300 MHz | 2000 MHz |
| GPU | ARM Mali-T760 MP2 | ARM Mali-400 MP2 | PowerVR G6200 |
| GPU cores | 2 | 2 | - |
| GPU frequency | 700 MHz | 416 MHz | 550 MHz |
| RAM capacity | 3 GB | 1 GB | 2 GB |
| RAM type | LPDDR3 | LPDDR2/LPDDR3 | LPDDR3 |
| RAM channels | Single channel | Single channel | Double channel |
| RAM frequency | 800 MHz | 533 MHz | 933 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 16 GB | 8 GB | 16 GB |
| - | - | eMMC 5.0 |
Memory cards
Memory cards are used in mobile devices for expanding their external storage capacity.
| Types | microSD microSDHC microSDXC | microSD microSDHC | microSD microSDHC microSDXC |
Display
The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.
| Type/technology | IPS | IPS | IPS |
| Diagonal size | 5.5 in 139.7 mm 13.97 cm | 5.5 in 139.7 mm 13.97 cm | 5.5 in 139.7 mm 13.97 cm |
| Width | 2.7 in 68.49 mm 6.85 cm | 2.7 in 68.49 mm 6.85 cm | 2.7 in 68.49 mm 6.85 cm |
| Height | 4.79 in 121.76 mm 12.18 cm | 4.79 in 121.76 mm 12.18 cm | 4.79 in 121.76 mm 12.18 cm |
| Aspect ratio | 1.778:1 16:9 | 1.778:1 16:9 | 1.778:1 16:9 |
| Resolution | 1080 x 1920 pixels | 540 x 960 pixels | 1080 x 1920 pixels |
| Pixel density | 401 ppi 157 ppcm | 200 ppi 78 ppcm | 401 ppi 157 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 68.89 % | 69.02 % | 72.42 % |
| Other features | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch | Capacitive Multi-touch |
| 2.5D curved glass screen | - | OGS (One Glass Solution) Full Lamination Technology Viewing angle - 178° |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Compass Fingerprint | Proximity Light Accelerometer Compass Fingerprint | Proximity Light Accelerometer Compass Gyroscope |
Rear camera
The primary camera of the mobile device is usually placed on its back and can be combined with one or more additional cameras.
| Sensor model | - | - | Samsung S5K3M2 |
| Sensor type | CMOS | - | ISOCELL |
| Sensor size | - | - | 4.69 x 3.52 mm 0.23 in |
| Pixel size | - | - | 1.127 µm 0.001127 mm |
| Crop factor | - | - | 7.38 |
| ISO | - | - | 100 - 1600 |
| Aperture | f/2.2 | - | f/2.2 |
| Field of view | - | - | 78 ° |
| Number of lenses | - | - | 5 |
| Flash type | Dual LED | LED | LED |
| Image resolution | 4608 x 3456 pixels 15.93 MP | 2560 x 1920 pixels 4.92 MP | 4160 x 3120 pixels 12.98 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | - | 1920 x 1080 pixels 2.07 MP |
| Video FPS | 30 fps | - | 30 fps |
| Features | Autofocus Continuous shooting Digital zoom Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode | Autofocus Continuous shooting Digital zoom Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Scene mode | Autofocus Continuous shooting Digital image stabilization Geotagging HDR Touch focus Face detection White balance settings ISO settings Scene mode Phase detection autofocus (PDAF) |
| - | Interpolated resolution - 13 MP | 720p @ 120 fps |
Front camera
Modern smartphones have one or more front cameras and their positioning has led to various design concepts – pop-up camera, rotating camera, notch, punch hole, under-display camera, etc.
| Sensor model | - | - | OmniVision OV5670 |
| Sensor type | - | - | PureCel |
| Sensor size | - | - | 2.95 x 2.21 mm 0.14 in |
| Pixel size | - | - | 1.136 µm 0.001136 mm |
| Crop factor | - | - | 11.74 |
| Aperture | - | - | f/2 |
| Image resolution | 3264 x 2448 pixels 7.99 MP | 1600 x 1200 pixels 1.92 MP | 2592 x 1944 pixels 5.04 MP |
| Video resolution | - | - | 1920 x 1080 pixels 2.07 MP |
| Video FPS | - | - | 30 fps |
| - | Interpolated resolution - 5 MP | - |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece | Loudspeaker Earpiece | Loudspeaker Earpiece |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | Yes | Yes | Yes |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | GPS A-GPS GLONASS | GPS A-GPS | GPS A-GPS GLONASS BeiDou |
Wi-Fi
Wi-Fi is a technology that provides wireless data connections between various devices within a short range.
| Wi-Fi | 802.11b 802.11g 802.11n Wi-Fi Hotspot | 802.11b 802.11g 802.11n Wi-Fi Hotspot | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Dual band Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 4.0 | - | 4.0 |
| Features | A2DP | A2DP | A2DP LE |
USB
The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.
| Connector type | Micro USB | Micro USB | Micro USB |
| Version | 2.0 | 2.0 | 2.0 |
| Features | Charging Mass storage On-The-Go | Charging Mass storage On-The-Go | Charging Mass storage On-The-Go |
Headphone jack
The headphone jack is an audio phone connector, a.k.a. an audio jack. The most widely used one in mobile devices is the 3.5 mm headphone jack.
| Headphone jack | Yes | Yes | Yes |
Connectivity
Information about other important connectivity technologies supported by the devices.
| Connectivity | Computer sync OTA sync Tethering HotKnot | Computer sync OTA sync Tethering | Computer sync OTA sync Infrared Tethering |
Browser
A web browser is a software application for accessing, fetching, displaying and navigating through information on the World Wide Web.
| Browser | HTML HTML5 CSS 3 | HTML HTML5 CSS 3 | HTML HTML5 CSS 3 |
Audio file formats/codecs
Mobile devices support various audio file formats and codecs, which respectively store and code/decode digital audio data.
| Audio file formats/codecs | AAC AMR eAAC+ MIDI MP3 WMA WAV | AAC AMR eAAC+ MIDI MP3 WMA WAV | AAC AAC+ AMR AMR-WB eAAC+ MIDI MP3 OGG WMA WAV |
Video file formats/codecs
Mobile devices support various video file formats and codecs, which respectively store and code/decode digital video data.
| Video file formats/codecs | 3GPP AVI H.263 H.264 MP4 WMV | 3GPP AVI MP4 WMV | 3GPP AVI H.263 H.264 MKV MPEG-4 WMV Xvid |
Battery
The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.
| Capacity | 3000 mAh | 3200 mAh | 3060 mAh |
| Type | Li-Ion | Li-Polymer | Li-Polymer |
| 3G talk time | - | - | 11 h 30 min 11.5 h 690 min 0.5 days |
| 3G stand-by time | - | - | 144 h 8640 min 6 days |
| Features | Removable | Removable | Fast charging Removable |
Specific Absorption Rate (SAR)
The SAR rating shows the amount of electromagnetic radiation absorbed by the human body when using a mobile device, expressed in W/kg.
| Head SAR (EU) | - | - | 0.342 W/kg |
| Body SAR (EU) | - | - | 0.452 W/kg |
| Ecoo Aurora Plus | Mijue M880 | Xiaomi Redmi Note 2 |