In depth comparison and review of HTC Desire 820 and Alcatel Idol 4S. 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 | HTC Desire 820 | Alcatel Idol 4S |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 157.7 mm | 153.9 mm | HTC Desire 820 has greater height than Alcatel Idol 4S. |
| Width | 78.74 mm | 75.4 mm | HTC Desire 820 has greater width than Alcatel Idol 4S. |
| Depth | 7.74 mm | 7 mm | Alcatel Idol 4S is narrower than HTC Desire 820. |
| Weight | 155 g | 149 g | Alcatel Idol 4S is lighter than HTC Desire 820. |
| Body Colour | Tuxedo grey | Marble white | Dark grey | |
| Body Material | Polycarbonate | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.323 W/kg (body), 0.373 W/kg (head) | - | |
| Integrated Components | FM radio | FM radio | |
| Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | - | Dual-SIM (SIM1 and SIM2/MicroSD slots) | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | HTC Desire 820 | Alcatel Idol 4S |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | Super LCD 2 | AMOLED | |
| Screen Size (Display Size) | 5.5" | 5.5" | Both phones have the same screen size. |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 2560 x 1440 pixels | Alcatel Idol 4S has better screen resolution than HTC Desire 820. |
| Display Format | HD | QHD | |
| Pixel Density | 267 ppi | 534 ppi | Alcatel Idol 4S has better pixel density than HTC Desire 820. |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Display Protection (Screen Protector) | Corning Gorilla Glass 3 (scratch resistant glass) | Fingerprint-resistant oleophobic coating, Dragontrail (scratch resistant glass), 2.5D Arc Glass |
| PROCESSOR | HTC Desire 820 | Alcatel Idol 4S |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 615 | Qualcomm Snapdragon 652 | |
|---|---|---|---|
| Processor Number | - | MSM8976 | |
| Clock Speed | - | 1.8 GHz | |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 405 | Qualcomm ADRENO 510 |
| MEMORY | HTC Desire 820 | Alcatel Idol 4S |
|---|
| RAM | 2 GB | 3 GB | Alcatel Idol 4S has more RAM than HTC Desire 820. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 32 GB | Alcatel Idol 4S has more internal memory than HTC Desire 820. |
| User Memory | 11.2 GB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSDHC, microSDXC - up to 256 GB |
| CAMERA | HTC Desire 820 | Alcatel Idol 4S |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 16 Megapixel | Alcatel Idol 4S has better camera resolution than HTC Desire 820. |
| Sensor Type | BSI-CMOS | - | |
| Lens Aperture | F/2.2 | F/2.0 | Alcatel Idol 4S has better lens aperture than HTC Desire 820. |
| Focus Adjustment | Automatic | Automatic | |
| Minimum Focal Length (Focal Distance) | 28 mm | - | |
| HDR Mode | Auto HDR mode | Auto HDR mode | |
| Camera Modes | Burst mode | Panorama | |
| Face Recognition (Face ID) | Face detection | - | HTC Desire 820 has face detection. |
| Light Source | LED light | Dual LED flash | |
| Still Image Resolutions | 4160 x 3120 | - | |
| Video Resolutions | 1920 x 1080 (1080p) | 3840 x 2160 (4K) | |
| Camera Features (Functions) | Auto selfie, Photo Booth feature, Live Makeup, Split Capture | Phase Detect Auto-Focus (PDAF) |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 8 Megapixel | Both phones have the same front camera resolution. |
| Sensor Type (Front) | BSI-CMOS | - | |
| Lens Type (Front) | - | Wide-angle lens | |
| Lens Aperture (Front) | - | F/2.4 | |
| Special Effects (Front) | Face fusion | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) |
| BATTERY AND CHARGING | HTC Desire 820 | Alcatel Idol 4S |
|---|
| Battery Capacity (Battery Size) | 2600 mAh | 3000 mAh | Alcatel Idol 4S has larger battery capacity than HTC Desire 820. |
|---|---|---|---|
| Recharge Time (Charging Time) | - | 100 min | |
| Standby Time | 455 hours | 420 hours | HTC Desire 820 has longer standby time than Alcatel Idol 4S. |
| Talk Time | 1068 minutes | 780 minutes | HTC Desire 820 has longer battery life when making calls than Alcatel Idol 4S. |
| Run Time Details | Talk (WCDMA): up to 1068 min Standby (WCDMA): up to 455 hrs |
Talk: up to 780 min Standby: up to 420 hrs |
|
| Battery Technology | Lithium polymer | Lithium Ion |
| CELLULAR | HTC Desire 820 | Alcatel Idol 4S |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 4.4 (KitKat) | Android 6.0.1 (Marshmallow) | |
| User Interface | HTC Sense | - | |
| Navigation | A-GPS, GLONASS | GPS, A-GPS |
| COMMUNICATIONS | HTC Desire 820 | Alcatel Idol 4S |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 4G LTE Band | Band 3, Band 7, Band 8, Band 20 | - | |
| 4G LTE Frequency | FDD 1800+, FDD 2600, FDD 900, FDD 800 DD | - | |
| Wireless Interface | IEEE 802.11a/b/g/n | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 4.2 | |
| Bluetooth Profiles | A2DP | - | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Communication Features | Mobile Email client, Internet browser | - | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | HTC Desire 820 | Alcatel Idol 4S |
|---|
| Supported Digital Audio Standards | WAV, AAC, AMR, MP3, OGG, MIDI, M4A, WMA 9 | WAV, WMA, MP3, AAC + | |
|---|---|---|---|
| Supported Digital Video Standards | AVI, MPEG-4, 3GP, H.264, H.263, WMV9, 3G2 | XviD, MPEG-4, H.265 | |
| Sound Enhancements | HTC BoomSound | Hi-Fi Sound support |
| FEATURES | HTC Desire 820 | Alcatel Idol 4S |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, voice dialing, vibrating alert | Speakerphone, call timer, conference call, flight mode, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor | Accelerometer, proximity sensor, digital compass, gyro sensor | |
| Personal Information Management | Calendar, synchronization with PC, calculator, reminder, alarm clock | - | |
| Additional Phone Features | DLNA Certified, sharing media via DLNA, Wi-Fi Miracast, HTC BlinkFeed, HTC Sense Voice | Radio Data Service (RDS), HD Voice, Dual noise reduction microphones |
| OTHERS | HTC Desire 820 | Alcatel Idol 4S |
|---|
| Included Accessories | Power adapter | Stereo headset, USB cable, power adapter, SIM card removal tool, Virtual Reality Googles |
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