1. Introduction
The Ulefone Armor 33 Pro is a robust 5G rugged smartphone designed for demanding environments and extended use. It features dual screens, a massive 25500mAh battery, advanced camera systems including a 64MP night vision camera, and is powered by the MediaTek Dimensity 7300X SoC. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your device.

Figure 1: Ulefone Armor 33 Pro 5G Rugged Phone Overview
2. Package Contents
Ensure all items are present in your product package:
- 1 x Ulefone Armor 33 Pro Phone
- 1 x AC Power Charger (66W)
- 1 x Type-C to Type-C Data Cable (100cm)
- 1 x Protective Film (Pre-installed)
- 1 x SIM Needle
- 1 x Lanyard
- 1 x Multi-language User Manual
- 1 x Warranty Card
- 1 x Charging Instruction Card
- 1 x Safety Prompt Card

Figure 2: Package Contents
3. Initial Setup
3.1. Inserting SIM Cards and MicroSD Card
- Locate the SIM card tray on the side of the phone.
- Use the provided SIM needle to eject the tray.
- Place your Nano-SIM cards and/or microSD card into the designated slots. The phone supports 1x Nano-SIM + 1x Nano-SIM + 1x microSD.
- Carefully reinsert the tray into the phone.
3.2. Charging the Device
Before first use, fully charge your Ulefone Armor 33 Pro.
- Connect the provided Type-C cable to the phone's charging port.
- Connect the other end of the cable to the 66W AC Power Charger.
- Plug the charger into a power outlet.
- The phone supports 66W fast charging. A few minutes of charging can significantly replenish the battery.

Figure 3: Fast Charging the Device
3.3. Powering On/Off
- To Power On: Press and hold the Power button (located on the right side) until the Ulefone logo appears.
- To Power Off: Press and hold the Power button, then select 'Power off' from the options on the screen.
4. Operating Your Device
4.1. Dual Screen Functionality
The Armor 33 Pro features a 6.95-inch main screen and a 3.4-inch back screen, offering versatile display options.

Figure 4: 6.95-inch Main Screen

Figure 5: 3.4-inch Back Screen
Display Modes:
- Dual Screen Mirroring: Both the main and back screens display the same content simultaneously. By default, the currently active screen supports touch operations, but you can manually set either screen to support touch.
- Dual Screen Intelligence Display: This mode supports switching between the main and back screen, but only one screen can be displayed at a time.
- Main Screen Display: The back screen is disabled.
- Sub-screen Display: The main screen is disabled.
To switch between modes or configure settings, navigate to the display settings on your device.

Figure 6: Dual Screen Mirroring in Use
Double-tap to Wake/Sleep:
In Main Screen Display, Sub-screen Display, and Dual Screen Mirroring modes, double-tapping the touch-enabled screen can wake or sleep the screen.
4.2. Camera Features
The Armor 33 Pro is equipped with a versatile camera system:
- 50MP Primary Camera: For high-resolution photos with excellent detail and vibrant colors. Features OMNIVISION OV50H sensor, EIS anti-blur, 1/1.3" ultra-large sensor, and f/1.95 large aperture.
- 64MP Infrared Night Vision Camera: Utilizes OmniVision OV64B sensor and NightElf 3.0 technology with 4 infrared LEDs for clear night shots.
- 50MP Ultra-wide Macro Camera: Captures wide scenes with a 117.3° FOV and detailed macro shots.
- 32MP HD Selfie Camera: For clear selfies and video calls with an f/2.45 large aperture.

Figure 7: 50MP Primary Camera Lens Diagram

Figure 8: 64MP Night Vision Camera Sample
Instant Camera Key:
The dedicated physical camera key allows for quick access to the camera. A long press launches the camera app, and a gentle press captures a photo.

Figure 9: Instant Camera Key
4.3. Infinite Halo 2.0
The Infinite Halo 2.0 dynamically adjusts based on music rhythms or video content, providing an immersive experience. It also features notification and charging halos.
- Supported Modes: Music, Calling, Notification, and Charging.
- Customization: You can customize activation times and turn off the light via Do Not Disturb mode or Settings.

Figure 10: Infinite Halo 2.0 Modes
4.4. 118dB Loudspeaker
The Armor 33 Pro features an ultra-loud 118dB speaker with a 28mm diameter and a 9cc sound cavity, delivering powerful and clear audio for various uses, including outdoor party mode.

Figure 11: 118dB Loudspeaker Diagram
4.5. Google Gemini AI
The phone comes equipped with Google Gemini AI, offering personalized assistance, streamlining tasks, and efficient voice interaction tailored to your individual preferences.

Figure 12: Google Gemini AI Interface
4.6. uSmart Expansion Connector 2.0
The uSmart Expansion Connector 2.0 is designed for seamless expansion connectivity, offering stability and efficiency. It supports uSmart series accessories (sold separately) like endoscopes and microscopes, allowing simultaneous charging while in use.

Figure 13: uSmart Expansion Connector and Accessories
5. Maintenance
5.1. Ruggedness and Durability
The Ulefone Armor 33 Pro is built to withstand harsh conditions:
- IP68/IP69K Certified: Splash, water, and dust resistant. Tested under controlled laboratory conditions with a rating of IP68 (maximum depth of 2 meters for up to 30 minutes).
- MIL-STD-810H Certified: Military-grade durability, with drop resistance up to 1.5m tall.
- Corning® Gorilla® Glass 5: Both front and back screens are protected, offering enhanced drop and scratch resistance.
- Operating Temperature: Reliable performance from -30℃ to 55℃ (-22℉ to 131℉).

Figure 14: Water Resistance Test

Figure 15: Drop and Dust Resistance
Important Notes:
- Charger and accessories are not water-resistant.
- Splash, water, and dust resistance are not permanent and might decrease as a result of normal wear.
- Do not attempt to charge a wet Armor 33 Pro. Liquid damage is not covered under warranty.
5.2. Battery Care
The 25500mAh battery provides up to 10 days of normal use. To maximize battery lifespan:
- Avoid exposing the phone to extreme temperatures for prolonged periods.
- Use only the provided 66W charger and Type-C cable.
- Avoid completely draining the battery frequently.

Figure 16: Battery Temperature Reliability
6. Troubleshooting
6.1. Network Connectivity Issues
- No Signal/Limited Service: Ensure your SIM cards are correctly inserted and your device is within network coverage. Check if your carrier supports the phone's 5G/4G bands. Note that some carriers like Verizon, AT&T 5G network, Cricket, Sprint, and Boost Mobile may not be fully supported.
- 5G Network Not Working: Verify with your carrier if their 5G frequencies are compatible with the Armor 33 Pro 5G bands (Sub6: N1/2/3/5/7/8/20/25/28/38/40/41/66/71/77/78/79).
6.2. Performance Issues
- Slow Performance: Close unnecessary background applications. Clear cache regularly. The phone has 16GB RAM + 16GB Dynamic RAM and 512GB UFS3.1 storage, which should provide smooth performance.
- Storage Full: The phone supports up to 2TB microSD expansion. Consider moving large files to an external card or cloud storage.
6.3. Screen Unresponsive
- If the screen becomes unresponsive, try a force restart by holding down the Power button for an extended period (usually 10-15 seconds) until the device reboots.
7. Specifications
| Category | Specification |
|---|---|
| Physical Characteristics | |
| Color | Phantom Black |
| Material | PC + Aluminium |
| USB | Type-C, USB 2.0 |
| Headphone Jack | 3.5mm Headphone Jack |
| Expansion Connector | uSmart Expansion Connector 2.0 (supports uSmart series accessories, allows simultaneous charging) |
| Card Slots | 3 (1x Nano-SIM + 1x Nano-SIM + 1x microSD) |
| Keys | Right: Power button (Fingerprint) + Volume button + Camera Key; Left: Custom Key |
| Size & Weight | |
| Product Size | 185.5 x 85.5 x 34 mm / 7.3 x 3.37 x 1.34 inches |
| Product Weight | 776.5g / 27.39 ounces |
| Ruggedness | |
| Certification | IP68/IP69K/MIL-STD-810H |
| Splash, Water, and Dust Resistant | Maximum depth of 2 meters up to 30 minutes |
| Drop resistance | Up to 1.5m tall |
| Working Temperature | -30℃ - 55 ℃ (-22℉ - 131℉) |
| Main Display | |
| Screen Size | 6.95-inch |
| Screen Resolution | 1080 x 2460 FHD+ |
| Aspect Ratio | 20.5:9 |
| PPI | 387 |
| Brightness | 700nits (peak brightness) |
| Color Depth | 10-bit |
| Refresh Rate | 120Hz |
| Screen-to-Body Ratio | 87% |
| Multi-touch | 10 |
| Back Display | |
| Screen Size | 3.4-inch |
| Screen Resolution | 412 x 960 HD+ |
| Brightness | Max 600 nits |
| Refresh Rate | 60Hz |
| Multi-touch | 5 |
| Processor | |
| CPU Model | MediaTek Dimensity 7300X |
| Main frequency | 2.5GHz |
| Production Process | 4nm |
| CPU Core | 8 (4x Arm Cortex-A78 up to 2.5GHz, 4x Arm Cortex-A55) |
| GPU | Arm Mali-G615 MC2, 1100MHz |
| AI Processing Unit | MediaTek NPU 655 |
| RAM & Storage | |
| RAM | 16GB LPDDR5 + 16GB Dynamic RAM (extendable in Settings) |
| Storage | 512GB UFS3.1 |
| Max. Expansion Supported | 2TB |
| Rear Camera | |
| Rear Camera Quantity | 3 |
| Main Rear Camera | 50MP (OV50H CMOS sensor, 1.197μm, 7 piece lens, FOV 85°, ƒ/1.95 large aperture) |
| Night Vision Camera | 64MP (OV64B CMOS sensor, FOV 79.4°, ƒ/1.79 large aperture) |
| Ultra-wide Lens | 50MP (Samsung JN1 CMOS sensor, FOV 117.3°, ƒ/2.2 large aperture) |
| Flash | 2 |
| Video Recording Resolution | 4K(30fps), FHD(30fps), HD(30fps), VGA(30fps) |
| Special Features (Camera) | Normal mode, Night vision mode, Film mode, 50MP mode, Night mode, Document correction, GroupPhoto, AI Emoji, Gif, Portrait, Sports, Pro mode, Panorama, Slow motion, Time lapse, Intelligent scanning |
| Front Camera | |
| Pixel | 32MP |
| Details | Samsung GD2 CMOS sensor, 0.8μm, 5 piece lens, FOV 80.4°, ƒ/2.45 large aperture |
| Video Recording Resolution | FHD(30fps), HD(30fps), VGA(30fps) |
| Special Features (Front Camera) | Normal mode, Film mode, GroupPhoto, AI Emoji, Gif, Portrait |
| Battery & Charging | |
| Capacity | 25500mAh |
| Watt Hours Per Battery | 98.685 Wh |
| Battery Type | Lithium-ion polymer battery |
| Charging Details | 66W, 11V6A/11V3A |
| Reverse Charge | Supports wired reverse charging, 10W |
| Standby Time | 1380 Hours |
| Talk Time | 104 Hours |
| Network & Connectivity | |
| Card Type | Nano+Nano+microSD |
| Cellular | 5G/4G/3G/2G |
| 5G Bands | Sub6: N1/2/3/5/7/8/20/25/28/38/40/41/66/71/77/78/79 |
| 4G Bands | FDD-LTE: B1/2/3/4/5/7/8/12/13/17/18/19/20/25/26/28A/28B/32/66/71; TDD-LTE: B34/38/39/40/41 |
| 3G Bands | WCDMA: B1/2/4/5/6/8/19 |
| 2G Bands | GSM: B2/3/5/8; CDMA: BC0/BC1/BC10 |
| Standby Mode | Dual sim dual standby |
| VoNR | Support |
| VoLTE | Support |
| WiFi | WiFi 6E (2.4GHz/5GHz/6GHz), 802.11a/b/g/n/ac/ax |
| Bluetooth Version | BT5.4 |
| Navigation | GPS/GLONASS/Beidou/Galileo/QZSS/NavlC GPS |
| Audio | |
| Speaker Quantity | 1 |
| Speaker Model | SPK BOX |
| Speaker Power | Max 4W |
| Smart PA | AW88394 |
| Loudness | 118dB |
| Equivalent Cavity | 9cc |
| Infinite Halo 2.0 | |
| Number of LEDs | 3, Tri-color |
| Supported Modes | 4 (Music, Calling, Notification, and Charging) |
| Customizable Activation Time | Support |
| One-key Turn-off Light | Support (via Do Not Disturb mode or Settings) |
| Security | |
| Fingerprint ID | Support |
| Face Unlock | Support |
| System & Features | |
| Android Version | Android 14 |
| Language Support | Indonesian, Malay, Catalan, Czech, Danish, German, Estonian, English, Spanish, Filipino, French, Croatian, Italian, Latvian, Lithuanian, Hungarian, Dutch, Norwegian, Polish, Portuguese, Romanian, Slovak, Finnish, Swedish, Vietnamese, Greek, Turkish, Bulgarian, Russian, Serb, Ukrainian, Armenian, Hebrew, Urdu, Arabic, Persian, Hindi, Bengali, Thai, Korean, Burmese, Japanese, Simplified Chinese, Traditional Chinese |
| Blinking Notification Light | Support (red/green/blue light) |
| Battery Status Light | Support |
| FM Radio | Support (headset-free FM radio) |
| Cell Broadcast | Support |
| Sensors | Proximity Sensor, Gravity sensor, Light Sensor, Acceleration Sensor, Geomagnetic sensor, Gyro sensor, Coulomb counter, Pedometer, Air pressure sensor, Infrared sensor |
| Special Features | |
| Underwater Camera | Support |
| Gloves Mode | Support |
| Digital Toolbox | Height Meter, Compass, Gradienter, Flashlight, Hanging Painting, Magnifier, Alarm bell, Plumb bob, Protractor, Noise Test, Pedometer, Barometer, Funny Sound, Mirror |
| OTG Function | Support |
| NFC | Support |
| IR Blaster | Support |
8. User Tips
- Memory Expansion: The phone supports memory expansion up to 2TB via microSD card. If you need more storage, consider adding a card.
- FM Radio: The device includes a headset-free FM radio, allowing you to listen to radio without needing headphones as an antenna.
- Network Compatibility: Before purchasing, especially if you are outside the primary sales regions, verify that your local carrier's network bands are compatible with the phone's specifications to ensure full functionality.
- Language Support: The phone supports a wide range of languages, including Spanish and Hebrew, ensuring a localized user experience.
9. Warranty and Support
9.1. Warranty Information
For non-human damage, Ulefone offers a 1-year warranty from the date of purchase. This warranty does not cover accessories and batteries. The buyer is responsible for returning shipping costs for warranty claims.
9.2. Returns and Exchanges
For any exchange or refund, the product must be in its original condition, including the box and all accessories. The buyer is responsible for the returning shipping cost.
9.3. After-Sales Service
Ulefone provides a Service Center 2.0 app for faster support and smarter assistance. This app offers access to user manuals, FAQs, and information about the Ulefone brand, products, and accessory ecosystem.

Figure 17: Service Center 2.0 App
9.4. Contacting Support
If you encounter any issues or have questions, please contact Ulefone customer service. It is recommended to inspect the package immediately upon receipt and record an unboxing video in case of any issues.
10. Frequently Asked Questions (FAQ)
- Q: Is the Ulefone Armor 33 Pro unlocked for any carrier?
- A: The phone supports various 5G/4G/3G/2G bands. However, it does not support certain carriers like Verizon, AT&T 5G network, Cricket, Sprint, or Boost Mobile. Please check the detailed specifications for band compatibility with your local carrier.
- Q: Does the phone support memory expansion?
- A: Yes, the Ulefone Armor 33 Pro supports microSD card expansion up to 2TB.
- Q: Does it come with FM radio?
- A: Yes, the phone supports headset-free FM radio.
- Q: What are the dimensions of the phone?
- A: The product size is 185.5 x 85.5 x 34 mm (7.3 x 3.37 x 1.34 inches).
- Q: Does the phone support multiple languages, including Spanish or Hebrew?
- A: Yes, the phone supports a wide range of languages, including Spanish, Hebrew, English, and many others.





