iPad (8th generation) - Technical specifications - Apple Support
iPad Pro 12.9-inch (6th generation) - Apple Support (SA)
iPad (第6世代) 9.7インチ 128GB + Apple Pencil
Apple iPad 第6世代
iPad mini (6th generation) - Technical Specifications - Apple Support
Identify your iPad model - Apple Support
iPad (9th generation) - Technical Specifications - Apple Support
iPad Air (5th generation) - Technical Specifications - Apple Support
iPadOS 16 - Wikipedia
Apple iPad 9.7 (2018) - Full tablet specifications