Network
The Asus Zenfone Zoom ZX550 is a GSM / HSPA / LTE smartphone, supporting a wide range of bands for 2G, 3G, and 4G networks. The supported 2G bands include GSM 850 / 900 / 1800 / 1900 for SIM 1 & SIM 2. For 3G, it supports HSDPA bands 850 / 900 / 1900 / 2100, and for 4G, it includes bands 1, 2, 3, 4, 5, 7, 8, 9, 17, 18, 19, 20, 28, and 29. The device offers maximum network speeds of up to HSPA 42.2/5.76 Mbps and LTE Cat4 150/50 Mbps.
Launch
The Asus Zenfone Zoom was announced in January 2015, with a release in December of the same year. Although this model has since been discontinued, it remains a significant device in the history of ASUS smartphones.
Body
The device measures 158.9 x 78.8 x 12 mm and weighs 185 grams, making it moderately hefty compared to modern standards. This size accommodates a comfortable grip while offering substantial screen size. The Zenfone Zoom ZX550 supports Dual SIM functionality using Micro-SIM cards with dual stand-by capabilities, making it convenient for users who need multiple numbers.
Display
Asus equipped the Zenfone Zoom with a 5.5-inch IPS LCD display, offering vibrant color reproduction and wide viewing angles. The screen resolution is set at 1080 x 1920 pixels with a 16:9 aspect ratio, resulting in a pixel density of about 403 ppi. This provides clear and detailed visuals. The display is protected by Corning Gorilla Glass 3, ensuring durability against scratches and minor impacts.
Platform
The Zenfone Zoom runs on Android 5.0 Lollipop, layered with Asus's ZenUI, which offers customization and added functionality over the standard Android experience. At its core is the Intel Atom Z3580 chipset, featuring a Quad-core 2.3 GHz processor. The PowerVR G6430 GPU handles graphics processing, ensuring smooth performance for multimedia and gaming.
Memory
This device comes in several internal storage variants: 16GB with 2GB RAM, 32GB with 2GB RAM, 64GB with 2GB RAM, and 128GB with 4GB RAM. To accommodate additional storage needs, it supports microSDXC cards through a dedicated slot.
Main Camera
The Asus Zenfone Zoom ZX550 stands out with its 13 MP primary camera. It features a periscope telephoto zoom lens with an aperture range of f/2.7-4.8 and focal lengths of 28-84mm. This system supports Laser Auto Focus, Optical Image Stabilization (OIS), and offers 3x optical zoom, enhancing photography quality significantly. The camera is equipped with dual-LED dual-tone flash, panorama mode, and HDR for improved imaging capabilities. It can also capture video at 1080p@30fps.
Selfie Camera
The selfie camera is a 5 MP shooter with an f/2.0 aperture, suitable for video calls and social media use. Although without standout features, it performs capably for basic photography needs.
Sound
The Zenfone Zoom is outfitted with a standard loudspeaker and a 3.5mm headphone jack, ensuring audio flexibility and quality. This supports a wide range of audio peripherals for media consumption.
Comms
The device supports modern communication standards such as Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, and hotspot capabilities. For wireless connectivity, it includes Bluetooth 4.0 with A2DP and EDR. Furthermore, positioning technologies like GPS and GLONASS ensure precise location tracking. However, it lacks NFC and radio functions. For wired connections, the Zenfone Zoom uses microUSB 2.0 and supports USB On-The-Go (OTG).
Features
Sensors on the Asus Zenfone Zoom ZX550 include an accelerometer, gyro, proximity sensor, and compass, allowing for enhanced interaction with apps and system functions.
Battery
The device is powered by a non-removable 3000 mAh Li-Po battery, providing sufficient power for daily use and moderate smartphone activities. It supports standard charging without fast charging capabilities.
Miscellaneous
The Zenfone Zoom ZX550 was released in two color variants: Meteorite black and Glacier white, appealing to diverse consumer tastes. Upon release, it was priced around 400 EUR, positioning it in the mid-range smartphone market at that time.
Key Features of Asus Zenfone Zoom ZX550
- Supports GSM / HSPA / LTE networks.
- 5.5-inch IPS LCD display with Full HD resolution (1080 x 1920 pixels), providing ~403 ppi density for sharp visuals, and protected by Corning Gorilla Glass 3.
- Powered by Intel Atom Z3580 chipset with a Quad-core 2.3 GHz CPU and PowerVR G6430 GPU, ensuring smooth performance.
- Available in multiple storage options: 16GB/32GB/64GB with 2GB RAM, and 128GB with 4GB RAM, expandable via microSDXC slot.
- 13 MP main camera featuring f/2.7-4.8 aperture, 28-84mm periscope telephoto zoom, Laser AF, OIS, and 3x optical zoom for diverse photography capabilities.
- Dual-LED dual-tone flash, panorama, and HDR support on the main camera.
- Decent 5 MP front camera with f/2.0 aperture for selfies.
- 3000 mAh non-removable Li-Po battery providing adequate battery life.
- Includes essential connectivity options like Wi-Fi 802.11 a/b/g/n/ac, Bluetooth 4.0, and GPS/GLONASS.
- Dual SIM support with dual standby capability for increased convenience.
- Available colors: Meteorite black, Glacier white.
Asus Zenfone Zoom ZX550 Disadvantages
- Discontinued status, meaning no longer available as new and likely lacks software updates.
- Heavy weight at 185 g, which may be uncomfortable for extended use.
- Older Android OS version (Lollipop 5.0) which may not support modern apps and features well.
- Limited internal storage options for the base models with only 2GB RAM, which might hinder performance with demanding applications.
- Lack of NFC support, which is useful for contactless payments and other modern connectivity features.
- No radio feature for FM listeners.
- Uses older microUSB 2.0 instead of the more recent and faster USB-C standard.
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