Zenfone 4 Pro ZS551KL Review, Price, Specs & Features (2025)
Asus • Released on , October
Zenfone 4 Pro ZS551KL is one of the latest smartphones from Asus in 2025. This Zenfone 4 Pro ZS551KL review covers all the key features, specifications, price, and expert analysis you need to know before buying. If you're looking for a powerful, affordable, and feature-rich phone, the Zenfone 4 Pro ZS551KL could be your best choice in 2025.
The Zenfone 4 Pro ZS551KL features a 5.5 inches, 83.4 cm2 (~70.3% screen-to-body ratio) display, 16 MP camera, 6 GB ram, 64GB/128GB storage, microSDXC storage, and a 3600 mAh battery, . Powered by Qualcomm MSM8998 Snapdragon 835 (10 nm) and running on Android 7.1.1 (Nougat), upgradable to Android 8 (Oreo), ZenUI 4, this device is designed for users who demand performance and reliability.
In this detailed Zenfone 4 Pro ZS551KL review, you'll find the latest price, user reviews, expert opinions, and a comparison with other top Asus phones. Whether you're interested in the Zenfone 4 Pro ZS551KL camera, battery life, gaming performance, storage or we've got you covered.
Zenfone 4 Pro ZS551KL Specifications
- Display: 5.5 inches, 83.4 cm2 (~70.3% screen-to-body ratio) screen for immersive viewing experience
- Camera: 16 MP camera system for high-quality photography
- Performance: 6 GB RAM for smooth multitasking
- Storage: 64GB/128GB storage, microSDXC internal storage for apps and media
- Battery: 3600 mAh battery for all-day usage
Network
| Technology | GSM / HSPA / LTE |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Bands | HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 |
| 4G Bands | 1, 2, 3, 4, 5, 7, 8, 17, 19, 20, 28, 38, 39, 40, 41 - Global, Taiwan |
| Speed | HSPA 42.2/5.76 Mbps, LTE (3CA) Cat12 600/150 or 100 Mbps |
Launch
| Announced | 2017, August |
| Status | Available. Released 2017, October |
Body
| Dimensions | 156.9 x 75.6 x 7.6 mm (6.18 x 2.98 x 0.30 in) |
| Weight | 175 g (6.17 oz) |
| Build | Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame |
| SIM | Nano-SIM + Nano-SIM |
Display
| Type | AMOLED |
| Protection | Corning Gorilla Glass 5 |
Platform
| OS | Android 7.1.1 (Nougat), upgradable to Android 8 (Oreo), ZenUI 4 |
| Chipset | Qualcomm MSM8998 Snapdragon 835 (10 nm) |
| CPU | Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo) |
| GPU | Adreno 540 |
Memory
| Card slot | microSDXC (uses shared SIM slot) |
| Internal | 64GB 6GB RAM, 128GB 6GB RAM |
Sound
| Loud Speaker | Yes, dual speakers |
Comms
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
| Bluetooth | 5.0, A2DP, EDR, LE, aptX |
| Positioning | GPS, GLONASS, BDS, GALILEO |
| NFC | Yes |
| Infrared Port | Yes |
| Radio | FM radio |
| USB | USB Type-C 2.0, OTG |
Battery
| Type | Li-Ion 3600 mAh, non-removable |
Features
| Sensors | Fingerprint (front-mounted), accelerometer, gyro, proximity, compass |
MISC
| Colors | Moonlight white, Pure Black |
| Models | Z01GD, Z01GS |
| Disclaimer: We cannot guarantee that the information on this page is 100% correct. |
FAQ
Water resistance varies by model. Check the device specifications for IP rating details.
No, this product does not support 5G connectivity.
Zenfone 4 Pro ZS551KL runs Android 7.1.1 (Nougat), upgradable to Android 8 (Oreo), ZenUI 4.
No, this product does not support wireless charging.
The Zenfone 4 Pro ZS551KL features a 3600 mAh battery capacity.
The Zenfone 4 Pro ZS551KL comes with a 16 MP main camera.
The Zenfone 4 Pro ZS551KL features a 5.5 inches, 83.4 cm2 (~70.3% screen-to-body ratio) display. With 1080 x 1920 pixels, 16:9 ratio (~401 ppi density) resolution for crisp and clear visuals. The AMOLED technology ensures vibrant colors and excellent viewing angles.
The Zenfone 4 Pro ZS551KL is equipped with 6 RAM for smooth multitasking and performance. Combined with the Qualcomm MSM8998 Snapdragon 835 (10 nm) processor, it delivers excellent performance for daily tasks and gaming.
Expert Analysis
Our team of mobile technology experts has analyzed the Zenfone 4 Pro ZS551KL specifications to help you understand how this device compares to other smartphones in its category. This comprehensive guide provides detailed insights into the phone's capabilities, performance potential, and suitability for different use cases.
Who Should Consider This Phone?
The Zenfone 4 Pro ZS551KL is ideal for users who prioritize photography, smooth performance, ample storage, long battery life . Whether you're a casual user, content creator, or business professional, this device offers the features you need for modern smartphone usage.
Why Choose Zenfone 4 Pro ZS551KL?
The Zenfone 4 Pro ZS551KL stands out in the competitive smartphone market with an impressive 5.5 inches, 83.4 cm2 (~70.3% screen-to-body ratio) display, an advanced 16 MP camera system, a long-lasting 3600 mAh battery, a powerful Qualcomm MSM8998 Snapdragon 835 (10 nm) processor.
Why Buy Zenfone 4 Pro ZS551KL?
- Latest Qualcomm MSM8998 Snapdragon 835 (10 nm) smartphone from Asus with excellent value for money
- Powerful Qualcomm MSM8998 Snapdragon 835 (10 nm) and 6 GB RAM for smooth multitasking
- Long-lasting 3600 mAh battery and fast charging support
- High-resolution 16 MP camera for stunning photos and videos
- Large 5.5 inches, 83.4 cm2 (~70.3% screen-to-body ratio) display for immersive viewing
- Runs on Android 7.1.1 (Nougat), upgradable to Android 8 (Oreo), ZenUI 4 with regular updates
- Great for gaming, streaming, and everyday use
Zenfone 4 Pro ZS551KL vs Competitors
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