Nextbit Robin was the first cloud-based Android smartphone with 100GB of free cloud storage. The budget phone has top-tier specifications and premium quality, but the company stopped the support for the device. The good news is that official LineageOS 16.0 (Android Pie) is available for Nextbit Robin, which means its users can still enjoy the latest Android features.
Xiaomi Redmi Note 7 Pro is a budget smartphone with flagship level camera. The company offers 48MP + 5MP AI dual rear camera, Snapdragon 675 octa-core processor, 6.3-inches FHD+ dot notch display, 128GB/6GB RAM, 64GB/4GB RAM, and 4000mAh battery at a very reasonable price. Launched with MIUI 10 (Android Pie), Redmi Note 7 Pro gets new MIUI 10.3.7.0 update in the stable channel.
Asus’s latest flagship phone ZenFone 6 is a great phone and perhaps a good choice for different reasons. Snapdragon 855 Octa-core processor, NanoEdge FHD+ display, ZenUI 6 (Android 9.0 Pie), motorized flip-up dual camera for main and selfie, and 5000-mAh battery with Quick Charge 4.0 are notable features of ZenFone 6 (ZS630KL)
Vivo launched V11 Pro in September 2018 with Android 8.1 Oreo-based Funtouch OS 4.5. The mid-range phone now receives Android 9 Pie update, which will bring improved performance, new UI, dark mode, camera enhancements, and more. The Pie update comes with build number PD1814F_EX_A_6.10.1 and available for Vivo V11 Pro in India.
Asus ZenFone 6 (2019) is not a too old device, but Asus Unlock tool APK and kernel source codes for the device have been available for download. With Asus Unlock tool app, users can unlock ZenFone 6 (ZS630KL) bootloader officially. It means, users can install a custom recovery, custom ROM, Google camera mod, get root access, and allows other development on the device.
Android 9 Pie based MIUI 10 is available for Xiaomi Mi Mix 2. The device receives the Pie update in the beta channel as MIUI 10 9.5.16 and available for download. MIUI 10 9.5.16 Global Beta Recovery ROM and Fastboot ROM download link given below, which may be useful if you prefer manual installation.