In depth comparison and review of Samsung Galaxy J7 Duo and Alcatel 1S (2021). 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 | Samsung Galaxy J7 Duo | Alcatel 1S (2021) |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-J720F | - | |
| Form Factor | Touch | Touch | |
| Height | 153.5 mm | 165.64 mm | Alcatel 1S (2021) has greater height than Samsung Galaxy J7 Duo. |
| Width | 77.2 mm | 75.59 mm | Samsung Galaxy J7 Duo has greater width than Alcatel 1S (2021). |
| Depth | 8.2 mm | 8.8 mm | Samsung Galaxy J7 Duo is narrower than Samsung Galaxy J7 Duo. |
| Weight | 174 g | 190 g | Samsung Galaxy J7 Duo is lighter than Samsung Galaxy J7 Duo. |
| Body Colour | Black | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.397 W/kg (body), 0.543 W/kg (head) | 2.99 W/kg (limb), 1.42 W/kg (body), 0.42 W/kg (head) | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Micro SIM | Nano SIM | |
| SIM Card Qty | Single-SIM | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | Samsung Galaxy J7 Duo | Alcatel 1S (2021) |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | HD Super AMOLED | IPS | |
| Screen Size (Display Size) | 5.5" | 6.52" | Alcatel 1S (2021) has larger screen size than Samsung Galaxy J7 Duo. |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 1600 x 720 pixels | Alcatel 1S (2021) has better screen resolution than Samsung Galaxy J7 Duo. |
| Display Format | HD | HD+ | |
| Aspect Ratio | - | 20:9 | |
| Colour Depth | 16.7 million colours | - | |
| Display Features | - | 2.5D Glass, Reading mode, Dark mode, Vast Display, One-handed Mode |
| PROCESSOR | Samsung Galaxy J7 Duo | Alcatel 1S (2021) |
|---|
| Processor Type (CPU) | - | MediaTek | |
|---|---|---|---|
| Processor Number | - | MTK6762D | |
| Clock Speed | 1.6 GHz | 1.8 GHz | Alcatel 1S (2021) has higher clock speed than Samsung Galaxy J7 Duo. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | - | IMG GE8320 |
| MEMORY | Samsung Galaxy J7 Duo | Alcatel 1S (2021) |
|---|
| RAM | 3 GB | 3 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 32 GB | Both phones have the same internal memory capacity. |
| User Memory | 21.9 GB | 17 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | microSDHC, microSD, microSDXC - up to 512 GB |
| CAMERA | Samsung Galaxy J7 Duo | Alcatel 1S (2021) |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 3 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 13 Megapixel | Both phones have the same camera resolution. |
| Sensor Size | - | 1/3.06" | |
| Lens Aperture | F/1.9 | F/2.0 | Samsung Galaxy J7 Duo has better lens aperture than Samsung Galaxy J7 Duo. |
| Lens Construction | - | 5-element | |
| Field of View (FoV) | - | 77.1 degree(s) | |
| Pixel Size | - | 1.12 μm | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | HDR | |
| Camera Modes | - | Panorama, Pro mode, Best Shot, Bokeh Mode, Light Trace | |
| Face Recognition (Face ID) | - | Face tracking | Alcatel 1S (2021) has face detection. |
| Light Source | LED flash | Single tone LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | - | Phase Detect Auto-Focus (PDAF), EIS video stabilisation, AI scene detection, AI Composition, AI Filter, Smart Album |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 5 Megapixel | 2 Megapixel | Samsung Galaxy J7 Duo has better second camera resolution than Alcatel 1S (2021). |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/5" | |
| Lens Aperture (2nd Camera) | F/1.9 | F/2.4 | Samsung Galaxy J7 Duo has better second camera lens aperture than Samsung Galaxy J7 Duo. |
| Lens Element Qty (2nd Camera) | - | 3-element | |
| Field of View (2nd Camera) | - | 87.3 degree(s) | |
| Pixel Size (2nd Camera) | - | 1.12 μm | |
| Camera Functions (2nd Camera) | - | Depth camera | |
| Camera Features (2nd Camera) | - | 3-piece lens |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Sensor Size (3rd Camera) | - | 1/5" | |
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Lens Element Qty (3rd Camera) | - | 3-element | |
| Field of View (3rd Camera) | - | 84 degree(s) | |
| Pixel Size (3rd Camera) | - | 1.65 μm | |
| Camera Functions (3rd Camera) | - | Macro camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 5 Megapixel | Samsung Galaxy J7 Duo has better front camera resolution than Alcatel 1S (2021). |
| Sensor Size (Front) | - | 1/5" | |
| Lens Aperture (Front) | F/1.9 | F/2.2 | Samsung Galaxy J7 Duo has better front lens aperture than Samsung Galaxy J7 Duo. |
| Field of View (Front) | - | 76 degree(s) | |
| Pixel Size (Front) | - | 1.12 μm | |
| Focus Adjustment | - | Focus free | |
| Special Effects (Front) | - | Face Beautification | |
| Camera Modes (Front) | - | Night mode, Bokeh Mode | |
| Face Recognition (Face ID) | - | Face tracking | Alcatel 1S (2021) has face detection. |
| Light Source (Front) | - | Display flash | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps |
| BATTERY AND CHARGING | Samsung Galaxy J7 Duo | Alcatel 1S (2021) |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 4000 mAh | Alcatel 1S (2021) has larger battery capacity than Samsung Galaxy J7 Duo. |
|---|---|---|---|
| Recharge Time (Charging Time) | - | 150 min | |
| Standby Time | - | 512 hours | |
| Talk Time | 1200 minutes | 1920 minutes | Alcatel 1S (2021) has longer battery life when making calls than Samsung Galaxy J7 Duo. |
| Run Time Details | Active online usage (WCDMA): up to 11 hrs Active online usage (LTE): up to 13 hrs Active online usage (Wi-Fi): up to 13 hrs Playback (video): up to 17 hrs Playback (audio): up to 66 hrs Talk (WCDMA): up to 1200 min |
Standby (2G): up to 512 hrs Standby (3G): up to 488 hrs Standby (4G): up to 392 hrs Talk (4G): up to 1200 min Talk (2G): up to 1920 min |
| CELLULAR | Samsung Galaxy J7 Duo | Alcatel 1S (2021) |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Google Android | Android 11 | |
| Intelligent Assistant | Bixby | Google Assistant | |
| Navigation | GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Samsung Galaxy J7 Duo | Alcatel 1S (2021) |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSPA+, LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 5, Band 8 | Band 1, Band 2, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 1900, 850, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40, Band 41 | 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, TDD 2600, TDD 2300, TDD 2500 | 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 802.11a/b/g/n/ac, ANT+/ANT | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| Messaging Services | SMS, MMS | - |
| MEDIA | Samsung Galaxy J7 Duo | Alcatel 1S (2021) |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), AWB, Vorbis | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 | MPEG-4, H.263, HEVC, VP8, VP9, H.265, H.264 AVC |
| FEATURES | Samsung Galaxy J7 Duo | Alcatel 1S (2021) |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor | Accelerometer, proximity sensor, digital compass, light sensor | |
| Security Devices | Face recognition, fingerprint reader | Face recognition, fingerprint reader | |
| Security Technology | - | Face Key | |
| Additional Phone Features | - | Multitasking, HD Voice, dual microphones with noise cancellation, Google Lens, Google Assistant Button |
| OTHERS | Samsung Galaxy J7 Duo | Alcatel 1S (2021) |
|---|
| Included Accessories | Power adapter | USB cable, power adapter, SIM card removal tool, LCD sticker |
|---|
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