Used Nubia Z20 – 128GB/6GB RAM – 4G LTE, 6.42″ FHD+ AMOLED Dual-Screen Display

Design & Build

• 6.42-inch FHD+ AMOLED main display with 1080 x 2340 resolution, 401 ppi, and curved glass design – notch-free full screen experience
• 5.1-inch HD+ AMOLED secondary display on the back with 720 x 1520 resolution, 330 nits brightness – supports Always-On Display and custom animations
• Qualcomm Snapdragon 855+ octa-core processor (7nm) – 1×2.96GHz Kryo 485 & 3×2.42GHz Kryo 485 & 4×1.78GHz Kryo 485 with Adreno 640 GPU – flagship performance for its era 
• 6GB or 8GB LPDDR4X RAM with 128GB or 512GB internal storage (UFS 3.0) – no microSD expansion 
• Triple rear camera (no front camera): 48MP main (f/1.7, OIS, Sony IMX586) + 16MP ultra-wide (122.2° FoV) + 8MP telephoto (3x optical zoom) – 8K video recording at 15fps, 4K at 60fps, 1920fps super slow-mo 
• Uses rear cameras as selfie camera via the secondary display – 48MP OIS selfies with ultra-wide and telephoto options
• Dual side-mounted fingerprint sensors (on both left and right edges) – 0.1s unlock, works with either screen orientation 
• 4000mAh battery with 27W fast charging (PD2.0 / Quick Charge 4.0) – up to 100 hours endurance rating 
• 4G LTE connectivity with Dual SIM support (Nano-SIM + Nano-SIM) – 5G not supported 
• Stereo speakers with 32-bit/384kHz Hi-Res audio – no 3.5mm headphone jack 
• Android 9.0 (Pie) with nubia UI 7.0 – upgradable to Android 10 
• Premium glass front and back (Gorilla Glass 5) with aluminum frame – curved symmetrical design, 186g weight 
• Dual-screen features: Dual-screen multitasking, rear AOD display, FIT 4.0 pressure-sensitive frame gestures, dual speaker grilles for both orientations
• Available in Twilight Blue, Diamond Black, and Red – unique “two-faced” design approach
• Won 2020 German Design Award (Computer & Communication category Gold Award) for innovative design 
• No NFC, no wireless charging, no 5G support