Device OS Version % Total Sessions Size
Apple iPhone 7.1 40% handset
Apple iPad 7.1 7.9% small/large tablet
Apple iPhone 7.0.6 4.9% handset
LG Nexus 5 4.4.2 4.5% handset
Google Nexus 4 4.4.2 4% handset
Apple iPhone 7.0.4 3.2% handset
Apple iPhone 7.1.1 3.2% handset
Google Nexus 4 4.3.1 2.5% handset
Google Nexus 7 4.4.2 2.1% small tablet
Apple iPhone 6.1.3 1.5% handset
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Get the most bang
for your buck
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focus on the 20% of
devices that produce
80% of your traffic
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Device OS Version % Total Sessions Size
Apple iPhone 7.1 40% handset
Apple iPad 7.1 7.9% small/large tablet
Apple iPhone 7.0.6 4.9% handset
LG Nexus 5 4.4.2 4.5% handset
Google Nexus 4 4.4.2 4% handset
Apple iPhone 7.0.4 3.2% handset
Apple iPhone 7.1.1 3.2% handset
Google Nexus 4 4.3.1 2.5% handset
Google Nexus 7 4.4.2 2.1% small tablet
Apple iPhone 6.1.3 1.5% handset
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cover your
visitors’ screen
sizes and
operating
systems
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Device OS Version % Total Sessions Size
Apple iPhone 7.1 40% handset
Apple iPad 7.1 7.9% small/large tablet
Apple iPhone 7.0.6 4.9% handset
LG Nexus 5 4.4.2 4.5% handset
Google Nexus 4 4.4.2 4% handset
Apple iPhone 7.0.4 3.2% handset
Apple iPhone 7.1.1 3.2% handset
Google Nexus 4 4.3.1 2.5% handset
Google Nexus 7 4.4.2 2.1% small tablet
Apple iPhone 6.1.3 1.5% handset
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buggiest:
Kindle, older Android
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Device OS Version % Total Sessions Size
Apple iPhone 7.1 40% handset
Apple iPad 7.1 7.9% small/large tablet
Apple iPhone 7.0.6 4.9% handset
LG Nexus 5 4.4.2 4.5% handset
Google Nexus 4 4.4.2 4% handset
Apple iPhone 7.0.4 3.2% handset
Apple iPhone 7.1.1 3.2% handset
Google Nexus 4 4.3.1 2.5% handset
Google Nexus 7 4.4.2 2.1% small tablet
Apple iPhone 6.1.3 1.5% handset
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Does usage differ
if you segment by
audience region
or target market?
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combination of
touch and cursor
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retina/DPI
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Device OS Version % Total Sessions Size
Apple iPhone 7.1 40% handset
Apple iPad 7.1 7.9% small/large tablet
Apple iPhone 7.0.6 4.9% handset
LG Nexus 5 4.4.2 4.5% handset
Google Nexus 4 4.4.2 4% handset
Apple iPhone 7.0.4 3.2% handset
Apple iPhone 7.1.1 3.2% handset
Google Nexus 4 4.3.1 2.5% handset
Google Nexus 7 4.4.2 2.1% small tablet
Apple iPhone 6.1.3 1.5% handset
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Device OS Version % Total Sessions Size
Apple iPhone 7.1 40% handset
Apple iPad 7.1 7.9% small/large tablet
Apple iPhone 7.0.6 4.9% handset
LG Nexus 5 4.4.2 4.5% handset
Google Nexus 4 4.4.2 4% handset
Apple iPhone 7.0.4 3.2% handset
Apple iPhone 7.1.1 3.2% handset
Google Nexus 4 4.3.1 2.5% handset
Google Nexus 7 4.4.2 2.1% small tablet
Apple iPhone 6.1.3 1.5% handset
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purchasing devices
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used devices better-
represent battery life
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wifi-capable vs. data plan
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eBay, Amazon,
local cell phone dealers
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our devices
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In our lab:
• 12 Android phones (a range of operating system
versions and major manufacturers)
• 3 Android tablets (a range of screen resolutions)
• 1 Blackberry phone
• 1 Firefox phone (developer preview)
• 5 iPads (including 1 mini, different generations)
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In our lab (cont’):
• 5 iPhones/iPods
• 1 Kindle Fires (range of screen resolutions)
• 1 Windows Phone, 1 Windows Surface, 1 Dell laptop
• 1 Google Glass, 1 Chromebook Pixel
• 1 Raspberry Pi, and some Kubis
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More reading
• Strategies for choosing test devices:
http://stephanierieger.com/strategies-for-choosing-test-
devices/
• How to build a device lab, with a thorough first section
on choosing and acquiring devices:
http://dmolsen.com/2012/06/26/how-to-build-a-
device-lab-part-1/