Disclaimer:

• Eye Protection Mode must be enabled for the blue light filtering function to work.
• The typical battery capacity is 5000 mAh, and the rated battery capacity is 4910 mAh.
• Y21 is equipped with a vivo standard charger (power adapter 9V/2A), and supports up to 18W Fast Charge. Charging data is obtained from vivo labs. The actual charging power is dynamically adjusted as the scene changes, and subject to actual use. 
• Reverse charging requires an OTG cable which needs to be purchased separately.
• Actual available RAM/ROM is less due to the storage of operating system and pre-installed apps.
• 1GB Extended RAM realized by software
• Support memory expansion of up to 1TB. Micro SD card needs to be purchased separately.
• The four aspects of the cooling system are:
  graphite cooling plate, high heat conductivity copper foil, heat conductive gel, intelligent heat dissipation management system Cooling Turbo
• The transfer of data and files that are copyrighted or encrypted is not supported in EasyShare.
• Actual dimensions and weight may differ due to variations in processes, measurement methods, and material supplies.
• The product pictures and features shown are for reference only, the images shown on the display screen are simulated, and for demonstration purposes only. Please refer to the actual product.
• All data is based on our technical design parameters, laboratory test results and supplier test data. Actual performance may vary depending on software version, specific test environment and phone model. All comparisons shown on this page refer to vivo products only.
• As some specifications, parameters, or parts of the product may vary due to supplier change or different production batches, vivo may update the descriptions on this page accordingly without giving any prior notice. Please read this page carefully before use.
• The pixel value may vary under different camera modes, and is subject to actual usage.