The iQOO Z1 is a smartphone that was released by iQOO, a sub-brand of Vivo, in May 2020. The Z1 series is part of iQOO’s effort to cater to the mid-range smartphone market while offering high-end performance features.

Here’s a brief history and highlights of the iQOO Z1:

1. **Launch**: The iQOO Z1 was unveiled in China on May 19, 2020. It marked the brand's first foray into 5G-enabled smartphones, making it one of the early devices to support 5G connectivity.

2. **Key Features**:

   - **Display**: The phone featured a 6.57-inch LCD display with a 120Hz refresh rate, offering smooth scrolling and gaming performance.

   - **Processor**: The Z1 was powered by the MediaTek Dimensity 1000 chipset, a high-performance 5G-enabled SoC (System on Chip), which made the phone competitive in terms of processing power and efficiency.

   - **5G Connectivity**: It was one of the first smartphones in the market to support dual-mode 5G, giving it a future-proof edge in terms of connectivity.

   - **Battery**: The device packed a 4,500mAh battery, supporting 44W fast charging, which could charge the phone quickly.

   - **Cameras**: The phone featured a triple rear camera setup with a 48MP primary sensor, a 2MP depth sensor, and an 8MP wide-angle lens.

3. **Global Impact**: The iQOO Z1 was notable for offering high-end features at a relatively affordable price point. It targeted users who wanted 5G support and performance-oriented specifications without having to pay for flagship-tier prices.

4. **Variants**: The phone came in multiple RAM and storage variants, including 6GB, 8GB, and 12GB of RAM, and 128GB or 256GB of internal storage.

5. **Post-Launch**: After its release, the iQOO Z1 received positive feedback for its performance, 5G capabilities, and value for money. It helped strengthen iQOO's position in the Chinese smartphone market and was later made available in other regions as well.

The iQOO Z1 marked an important step in iQOO's journey, as it showcased the brand’s focus on performance and affordability, especially in the emerging 5G era.