Detailed comparison and review of Archos 55 Cobalt Plus and OPPO A57s. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.
| DESIGN AND DIMENSIONS | Archos 55 Cobalt Plus | OPPO A57s |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | CPH2385 | |
| Form Factor | Touch | Touch | |
| Height | 152.5 mm | 163.74 mm | OPPO A57s has greater height than Archos 55 Cobalt Plus. |
| Width | 77 mm | 75.03 mm | Archos 55 Cobalt Plus has greater width than OPPO A57s. |
| Depth | 8.3 mm | 7.99 mm | OPPO A57s is narrower than Archos 55 Cobalt Plus. |
| Weight | 130 g | 187 g | Archos 55 Cobalt Plus is lighter than Archos 55 Cobalt Plus. |
| Body Colour | Grey | Starry black | |
| Body Material | - | Composite polymer | |
| Waterproof (Water-resistant) | - | - | OPPO A57s is waterproof. |
| IP rating | - | IPX4 | |
| SAR Value | 1.277 W/kg (body), 0.251 W/kg (head) | 1.015 W/kg (body), 0.957 W/kg (head), 2.399 W/kg (limb) | |
| Integrated Components | FM radio | - | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
|
| SIM Card Type (Size) | Micro SIM, nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | Archos 55 Cobalt Plus | OPPO A57s |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS | LCD | |
| Screen Size (Display Size) | 5.5" | 6.56" | OPPO A57s has larger screen size than Archos 55 Cobalt Plus. |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 1612 x 720 pixels | OPPO A57s has better screen resolution than Archos 55 Cobalt Plus. |
| Display Format | HD | HD+ | |
| Pixel Density | 267 ppi | 269 ppi | OPPO A57s has better pixel density than Archos 55 Cobalt Plus. |
| Aspect Ratio | - | 20.1:9 | |
| Max Brightness | - | 600 cd/m² | |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | - | 1500:1 | |
| Display Refresh Rate | - | 60 Hz | |
| Touch Sampling Rate | - | 60 Hz | |
| Display Features | Full Lamination, 2.5D curved glass | Night mode, Eye comfort mode, 96% NTSC | |
| Display Protection (Screen Protector) | - | Panda Glass MN228 |
| PROCESSOR | Archos 55 Cobalt Plus | OPPO A57s |
|---|
| Processor Type (CPU) | MediaTek | MediaTek Helio G35 | |
|---|---|---|---|
| Processor Number | MT6735P | - | |
| Clock Speed | 1 GHz | 2.3 GHz | OPPO A57s has higher clock speed than Archos 55 Cobalt Plus. |
| Processor Core Qty | Quad-core | 8-core | OPPO A57s has higher processor core quantity than Archos 55 Cobalt Plus. |
| 64-bit Architecture | Yes | - | Archos 55 Cobalt Plus has 64-bit architecture. |
| Graphics System (GPU) | Mali T720 MP3 | IMG GE8320 |
| MEMORY | Archos 55 Cobalt Plus | OPPO A57s |
|---|
| RAM | 2 GB | LPDDR4X SDRAM - 4 GB | OPPO A57s has more RAM than Archos 55 Cobalt Plus. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 128 GB | OPPO A57s has more internal memory than Archos 55 Cobalt Plus. |
| Memory Interface | - | eMMC 5.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 64 GB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Archos 55 Cobalt Plus | OPPO A57s |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 50 Megapixel | OPPO A57s has better camera resolution than Archos 55 Cobalt Plus. |
| Sensor Size | - | 1/2.76" | |
| Sensor Name | - | Samsung S5KJN1 | |
| Lens Aperture | - | F/1.8 | |
| Lens Construction | - | 5-element | |
| Field of View (FoV) | - | 77 degree(s) | |
| Pixel Size | - | 0.64 μm | |
| Focus Adjustment | Automatic | Automatic | |
| Minimum Focal Length (Focal Distance) | - | 27 mm | |
| Digital Zoom | - | 5x | |
| Special Effects | - | Stickers | |
| Camera Modes | - | Panorama, Time-lapse mode, Pro mode, Portrait, Night | |
| Light Source | LED light | LED flash | |
| Video Resolutions | 1280 x 720 (720p) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/5" | |
| Lens Aperture (2nd Camera) | - | F/2.4 | |
| Lens Element Qty (2nd Camera) | - | 3-element | |
| Field of View (2nd Camera) | - | 89 degree(s) | |
| Pixel Size (2nd Camera) | - | 1.75 μm | |
| Minimum Focal Length (2nd Camera) | - | 21 mm | |
| Camera Functions (2nd Camera) | - | Monochrome |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 2 Megapixel | 8 Megapixel | OPPO A57s has better front camera resolution than Archos 55 Cobalt Plus. |
| Sensor Size (Front) | - | 1/1.4" | |
| Sensor Name (Front) | - | Omnivision OV08D10 sensor | |
| Lens Aperture (Front) | - | F/2.0 | |
| Lens Element Qty (Front) | - | 5-element | |
| Field of View (Front) | - | 79 degree(s) | |
| Pixel Size (Front) | - | 1.12 μm | |
| Focus Adjustment | - | Focus free | |
| Min Focal Length (Front) | - | 26 mm | |
| Special Effects (Front) | - | Stickers | |
| Camera Modes (Front) | - | Panorama, Time-lapse mode, Portrait | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps |
| BATTERY AND CHARGING | Archos 55 Cobalt Plus | OPPO A57s |
|---|
| Battery Capacity (Battery Size) | 2700 mAh | 5000 mAh | OPPO A57s has larger battery capacity than Archos 55 Cobalt Plus. |
|---|---|---|---|
| Fast Charging Technology | - | SuperVOOC Flash Charge technology | OPPO A57s has fast charging technology. |
| Standby Time | 450 hours | 304 hours | Archos 55 Cobalt Plus has longer standby time than OPPO A57s. |
| Talk Time | 1620 minutes | 1800 minutes | OPPO A57s has longer battery life when making calls than Archos 55 Cobalt Plus. |
| Run Time Details | Talk: up to 1620 min Standby (single SIM): up to 450 hrs Standby (dual SIM): up to 340 hrs |
Talk: up to 1800 min Standby (4G): up to 304 hrs Playback (video): up to 13.4 hrs Playback (audio (via speakers, 50% volume)): up to 40 hrs |
|
| Battery Technology | Lithium Ion | - |
| CELLULAR | Archos 55 Cobalt Plus | OPPO A57s |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 5.1 (Lollipop) | ColorOS 12.1 (based on Android 12) | |
| Intelligent Assistant | Google Now | - | |
| Navigation | GPS | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | Archos 55 Cobalt Plus | OPPO A57s |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, DC-HSPA+ | VoLTE, FDD-LTE, TDD-LTE, VoWiFi | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 850, 900 | |
| 4G LTE Band | - | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | - | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 5.3 BLE | |
| NFC | - | Yes | OPPO A57s has NFC reader for mobile payments. |
| Messaging Services | Google+ Hangouts, SMS, MMS | - |
| MEDIA | Archos 55 Cobalt Plus | OPPO A57s |
|---|
| Supported Digital Audio Standards | WAV, AAC, PCM, Ogg Vorbis, MP3, ADPCM, AAC + | WAV, WMA, AAC, AMR, MP3, FLAC, AC-3, OGG, MIDI, APE (Monkey's Audio), LDAC, OPUS, MID, SBC, apt-X HD | |
|---|---|---|---|
| Supported Digital Video Standards | AVI, MPEG-4, 3GP, H.264 | MKV, FLV, AVI, MOV, ASF, 3GP, M4V, TS, M2TS, WebM, MP4 | |
| Sound Enhancements | - | Dirac sound technologies |
| FEATURES | Archos 55 Cobalt Plus | OPPO A57s |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Ambient light sensor, proximity sensor, G-sensor | Accelerometer, proximity sensor, magnetometer, gravity sensor, brightness sensor | |
| Security Devices | - | Face recognition, fingerprint reader (side) | |
| Additional Phone Features | - | Noise reduction microphone, Fast Charging, 3 years of Security Updates, 2 years of OS upgrades, Cooling Graphite Thermal Pad, Reverse charging, super-linear dual speakers |
| OTHERS | Archos 55 Cobalt Plus | OPPO A57s |
|---|
| Included Accessories | Hands-free headset, USB cable, power adapter | SIM card removal tool, USB-C charging cable, protective film, SuperVOOC 33W power adapter | |
|---|---|---|---|
| Compliant Standards | - | IPX4 |
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