Design

  • 13 Pro Max: 160.8 x 78.1 x 7.7 mm - 240 grams S21 Ultra: 165.1 x 75.6 x 8.9 mm - 227 grams 13 Pro Max: stainless steel and glass S21 Ultra: aluminium and glass Both: IP68 water and dust resistance

Display 

  • 13 Pro Max: 6.7-inch OLED - 1284 x 2778 resolution S21 Ultra: 6.8-inch AMOLED - 1440 x 3200 resolution 13 Pro Max: Dolby Vision, HDR10, 1200 nits peak brightness S21 ultra: HDR10+, 1500 nits peak brightness Both: 120Hz adaptive refresh rate

Performance and battery

  • 13 Pro Max: A15 Bionic six-core processor S21 Ultra: Exynos octa-core or Snapdragon 888 processor (region depending) 13 Pro Max: 128/256/512GB and 1TB storage options S21 Ultra: 128/256/512GB storage options 13 Pro Max: Approx 4300mAh battery - 27W wired, 15W MagSafe wireless charging S21 Ultra: 5000mAh battery - 25W wired, 15W wireless charging

Cameras

  • 13 Pro Max: Triple camera system 12MP f/1.5 - 26mm wide - sensor shift OIS 12MP f/2.8 - 77mm telephoto - OIS - 3x optical zoom 12MP f/1.8 - 13mm ultrawide S21 Ultra: Quad camera system 108MP f/1.8 - 24mm wide - OIS and laser AF 10MP f/4.9 - 240mm perisope - 10x optical zoom 10MP f/2.4 - 72mm telephoto - OIS - 3x optical zoom 12MP f/2.2 - 13mm ultrawide 13 Pro Max: 4K/60 and Dolby Vision recording S21 Ultra: 8K/24 and HDR10+ recording

  • 12MP f/1.5 - 26mm wide - sensor shift OIS 12MP f/2.8 - 77mm telephoto - OIS - 3x optical zoom 12MP f/1.8 - 13mm ultrawide

  • 108MP f/1.8 - 24mm wide - OIS and laser AF 10MP f/4.9 - 240mm perisope - 10x optical zoom 10MP f/2.4 - 72mm telephoto - OIS - 3x optical zoom 12MP f/2.2 - 13mm ultrawide

Ecosystems

Price 

  • 13 Pro Max: from £1049 S21 Ultra: from £1149

Conclusion