In depth comparison and review of ASUS ZenFone 2 and Lenovo S820. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | ASUS ZenFone 2 | Lenovo S820 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 152.5 mm | 139.5 mm | ASUS ZenFone 2 has greater height than Lenovo S820. |
| Width | 77.2 mm | 69.7 mm | ASUS ZenFone 2 has greater width than Lenovo S820. |
| Depth | 10.9 mm | 9 mm | Lenovo S820 is narrower than ASUS ZenFone 2. |
| Weight | 170 g | 143 g | Lenovo S820 is lighter than ASUS ZenFone 2. |
| Body Colour | Osmium Black | Flamingo red | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.87 W/kg (body), 0.92 W/kg (head) | 0.572 W/kg (body) | |
| Integrated Components | - | FM radio | |
| Connector Type | Headset jack - mini-phone 3.5mm USB |
Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
|
| SIM Card Type (Size) | Micro SIM | Micro SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | ASUS ZenFone 2 | Lenovo S820 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS | IPS | |
| Screen Size (Display Size) | 5.5" | 4.7" | ASUS ZenFone 2 has larger screen size than Lenovo S820. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1280 x 720 pixels | ASUS ZenFone 2 has better screen resolution than Lenovo S820. |
| Display Format | Full HD | HD | |
| Pixel Density | 400 ppi | 312 ppi | ASUS ZenFone 2 has better pixel density than Lenovo S820. |
| Colour Depth | - | 16.7 million colours | |
| Display Protection (Screen Protector) | Fingerprint-resistant oleophobic coating, Corning Gorilla Glass 3 (scratch resistant glass) | Corning Gorilla Glass (scratch resistant glass) |
| PROCESSOR | ASUS ZenFone 2 | Lenovo S820 |
|---|
| Processor Type (CPU) | Intel Atom | MediaTek | |
|---|---|---|---|
| Processor Number | Z3580 | MT6589 | |
| Clock Speed | 2.3 GHz | 1.2 GHz | ASUS ZenFone 2 has higher clock speed than Lenovo S820. |
| Processor Core Qty | Quad-core | Quad-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | ASUS ZenFone 2 has 64-bit architecture. |
| Graphics System (GPU) | PowerVR G6430 | PowerVR SGX544 |
| MEMORY | ASUS ZenFone 2 | Lenovo S820 |
|---|
| RAM | 4 GB | 1 GB | ASUS ZenFone 2 has more RAM than Lenovo S820. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 4 GB | ASUS ZenFone 2 has more internal memory than Lenovo S820. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 64 GB | microSDHC - up to 32 GB |
| CAMERA | ASUS ZenFone 2 | Lenovo S820 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 12 Megapixel | ASUS ZenFone 2 has better camera resolution than Lenovo S820. |
| Lens Aperture | F/2.0 | - | |
| Focus Adjustment | Automatic | Automatic | |
| HDR Mode | Super HDR | - | |
| Camera Modes | Panoramic pictures, night mode, wide selfie mode, Beauty mode | - | |
| Face Recognition (Face ID) | - | Face detection | Lenovo S820 has face detection. |
| Light Source | Dual LED flash | LED light | |
| Video Resolutions | 1920 x 1080 (1080p) | - | |
| Camera Features (Functions) | Zero Shutter Lag, Blue Glass Infrared Filter, By Pixel Super Resolution technology | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 2 Megapixel | ASUS ZenFone 2 has better front camera resolution than Lenovo S820. |
| Focus Adjustment | Automatic | - |
| BATTERY AND CHARGING | ASUS ZenFone 2 | Lenovo S820 |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 2000 mAh | ASUS ZenFone 2 has larger battery capacity than Lenovo S820. |
|---|---|---|---|
| Standby Time | - | 140 hours | |
| Talk Time | - | 1320 minutes | |
| Run Time Details | - | Talk (GSM): up to 1320 min Talk (WCDMA): up to 600 min Standby (GSM): up to 140 hrs Standby (WCDMA): up to 140 hrs |
|
| Battery Technology | Lithium polymer | Lithium polymer |
| CELLULAR | ASUS ZenFone 2 | Lenovo S820 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 3G | ASUS ZenFone 2 has more advanced generation mobile network. |
| Operating System | Android 5.0 (Lollipop) | Android 4.2 (Jelly Bean) | |
| User Interface | ASUS ZenUI | - | |
| Navigation | A-GPS, GLONASS, BeiDou | GPS, A-GPS |
| COMMUNICATIONS | ASUS ZenFone 2 | Lenovo S820 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+ | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 900 GSM, 1800 GSM, 1900 GSM | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 17, Band 20 | - | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700b, FDD 800 DD | - | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 3.0 | |
| Bluetooth Profiles | A2DP | A2DP | |
| NFC | Yes | - | ASUS ZenFone 2 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | ASUS ZenFone 2 | Lenovo S820 |
|---|
| Supported Digital Audio Standards | - | WAV, WMA, MP3, eAAC+ | |
|---|---|---|---|
| Supported Digital Video Standards | - | MPEG-4, WMV, H.264 |
| FEATURES | ASUS ZenFone 2 | Lenovo S820 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, call timer, conference call, vibrating alert | |
|---|---|---|---|
| Sensors | Ambient light sensor, proximity sensor, digital compass, gyro sensor, G-sensor | Accelerometer, proximity sensor | |
| Additional Phone Features | Kids Mode, Glove Touchscreen Operation, ASUS BoostMaster technology | Active noise-cancellation |
| OTHERS | ASUS ZenFone 2 | Lenovo S820 |
|---|
| Included Accessories | Headset, power adapter | USB cable, power adapter |
|---|
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