iOS Ref

Resolution by iOS device

All tables are ordered by logical resolution height, then by actual resolution height, then by release date.

iPhone

Device Logical resolution Scale factor Actual resolution Diagonal size
iPhone XS Max 414 × 896 @3x 1242 × 2688 6.5"
iPhone XS
and X
375 × 812 1125 × 2436 5.8"
iPhone XR 414 × 896 @2x 828 × 1792 6.1"
iPhone 8+
and 7+, 6s+, 6+
414 × 736 @3x 1 1242 × 2208 1 5.5"
iPhone 8
and 7, 6s, 6
375 × 667 @2x 750 × 1334 4.7"
iPhone SE
and 5s, 5c, 5
320 × 568 640 × 1136 4"
iPhone 4s
and 4
320 × 480 640 × 960 3.5"
iPhone 3GS
and 3G, gen 1
320 × 480 @1x 320 × 480

1 Downsampled to actual pixel dimensions 1080 × 1920. See here for explanation.

iPad

Device Logical resolution Scale factor Actual resolution Diagonal size
iPad Pro 12.9" 1024 × 1366 @2x 2048 × 2732 12.9"
iPad Pro 11" 834 × 1112 1668 × 2388 11"
iPad Pro 10.5" 834 × 1112 1668 × 2224 10.5"
iPad (gen 6)
and iPad (gen 5), iPad Pro 9.7", Air 2, Air (gen 1), iPad 4, iPad (gen 3)
768 × 1024 1536 × 2048 9.7"
iPad mini 4
and mini 3, mini 2
7.9"
iPad mini (gen 1) @1x 768 × 1024
iPad (gen 2)
and iPad (gen 1)
9.7"

Apple Watch

Device Logical/actual resolution Diagonal size
Apple Watch 44mm
Series 4
368 × 448 1.73"
Apple Watch 40mm
Series 4
324 × 394 1.57"
Apple Watch 42mm
Series 3, 2, 1, 0
312 × 390 1.5"
Apple Watch 38mm
Series 3, 2, 1, 0
272 × 340 1.32"

iPod touch

Device Identical to Logical resolution Scale factor Actual resolution Diagonal size
iPod touch (gen 6)
and gen 5
iPhone SE, 5s, 5c, 5 320 × 568 @2x 640 × 1136 4"
iPod touch (gen 4) iPhone 4s, 4 320 × 480 640 × 960 3.5"
iPod touch (gen 3)
and gen 2, gen 1
iPhone 3GS, 3G, gen 1 @1x 320 × 480

Further reading