Detailed comparison and review of Samsung Galaxy J7 Duo and Ulefone Armor X3. 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 | Samsung Galaxy J7 Duo | Ulefone Armor X3 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-J720F | - | |
| Form Factor | Touch | Touch - Rugged | |
| Height | 153.5 mm | 158 mm | Ulefone Armor X3 has greater height than Samsung Galaxy J7 Duo. |
| Width | 77.2 mm | 77.5 mm | Ulefone Armor X3 has greater width than Samsung Galaxy J7 Duo. |
| Depth | 8.2 mm | 13.85 mm | Samsung Galaxy J7 Duo is narrower than Samsung Galaxy J7 Duo. |
| Weight | 174 g | 235 g | Samsung Galaxy J7 Duo is lighter than Samsung Galaxy J7 Duo. |
| Body Colour | Black | Silver | |
| Body Material | - | Aluminium alloy, thermoplastic polyurethane (TPU) | |
| Protection | - | Dustproof, waterproof, drop-proof, splash-resistant | |
| Waterproof (Water-resistant) | - | Yes | Ulefone Armor X3 is waterproof. |
| IP rating | - | IP68, IP69K, IP69 | |
| SAR Value | 1.397 W/kg (body), 0.543 W/kg (head) | 0.356 W/kg (body), 0.186 W/kg (head) | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
|
| 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 | Ulefone Armor X3 |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | HD Super AMOLED | IPS | |
| Screen Size (Display Size) | 5.5" | 5.5" | Both phones have the same screen size. |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 1440 x 720 pixels | Ulefone Armor X3 has better screen resolution than Samsung Galaxy J7 Duo. |
| Display Format | HD | HD+ | |
| Pixel Density | - | 293 ppi | |
| Aspect Ratio | - | 18:9 | |
| Colour Depth | 16.7 million colours | - |
| PROCESSOR | Samsung Galaxy J7 Duo | Ulefone Armor X3 |
|---|
| Processor Type (CPU) | - | MediaTek | |
|---|---|---|---|
| Processor Number | - | MT6580 | |
| Clock Speed | 1.6 GHz | 1.3 GHz | Samsung Galaxy J7 Duo has higher clock speed than Ulefone Armor X3. |
| Processor Core Qty | 8-core | Quad-core | Samsung Galaxy J7 Duo has higher processor core quantity than Ulefone Armor X3. |
| MEMORY | Samsung Galaxy J7 Duo | Ulefone Armor X3 |
|---|
| RAM | 3 GB | 2 GB | Samsung Galaxy J7 Duo has more RAM than Ulefone Armor X3. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 32 GB | Both phones have the same internal memory capacity. |
| User Memory | 21.9 GB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | microSDHC, microSDXC - up to 128 GB |
| CAMERA | Samsung Galaxy J7 Duo | Ulefone Armor X3 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 2 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 8 Megapixel | Samsung Galaxy J7 Duo has better camera resolution than Ulefone Armor X3. |
| Lens Aperture | F/1.9 | F/1.8 | Ulefone Armor X3 has better lens aperture than Samsung Galaxy J7 Duo. |
| Lens Construction | - | 5-element | |
| Focus Adjustment | Automatic | Automatic | |
| Camera Modes | - | Underwater mode | |
| Light Source | LED flash | Dual LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 5 Megapixel | 2 Megapixel | Samsung Galaxy J7 Duo has better second camera resolution than Ulefone Armor X3. |
|---|---|---|---|
| Lens Aperture (2nd Camera) | F/1.9 | - |
| 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 Ulefone Armor X3. |
| Lens Aperture (Front) | F/1.9 | F/2.0 | Samsung Galaxy J7 Duo has better front lens aperture than Samsung Galaxy J7 Duo. |
| Lens Element Qty (Front) | - | 4-element |
| BATTERY AND CHARGING | Samsung Galaxy J7 Duo | Ulefone Armor X3 |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 5000 mAh | Ulefone Armor X3 has larger battery capacity than Samsung Galaxy J7 Duo. |
|---|---|---|---|
| Standby Time | - | 440 hours | |
| Talk Time | 1200 minutes | 1500 minutes | Ulefone Armor X3 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 |
Talk: up to 1500 min Standby: up to 440 hrs Playback (Music): up to 34 hrs Playback (video): up to 9 hrs |
|
| Battery Technology | - | Lithium polymer |
| CELLULAR | Samsung Galaxy J7 Duo | Ulefone Armor X3 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 3G | Samsung Galaxy J7 Duo has more advanced generation mobile network. |
| Operating System | Google Android | Android 9.0 Pie | |
| Intelligent Assistant | Bixby | - | |
| Navigation | GPS, GLONASS, BeiDou | GPS |
| COMMUNICATIONS | Samsung Galaxy J7 Duo | Ulefone Armor X3 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+ | |
|---|---|---|---|
| 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 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, 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 | - | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac, ANT+/ANT | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 4.0 | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Samsung Galaxy J7 Duo | Ulefone Armor X3 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | AAC, AMR, MP3, FLAC | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 | MPEG-4, 3GP |
| FEATURES | Samsung Galaxy J7 Duo | Ulefone Armor X3 |
|---|
| 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, digital compass, L-sensor, P-sensor | |
| Security Devices | Face recognition, fingerprint reader | Face recognition | |
| Additional Phone Features | - | Face Unlock, Glove mode, customised button |
| OTHERS | Samsung Galaxy J7 Duo | Ulefone Armor X3 |
|---|
| Included Accessories | Power adapter | USB cable, power adapter, SIM card removal tool, tempered glass screen protector | |
|---|---|---|---|
| Compliant Standards | - | MIL-STD 810G, IP68, IP69K | |
| Max Depth of Water Resistance | - | 1.5 m | |
| Max Operating Temperature | - | 60 °C | |
| Min Operating Temperature | - | -20 °C |
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