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A high-end device ($450 or more)
Released within the last six months
Released 12--18 months ago
A mid-range device ($150--$449)
Released within the last six months
Released 12--18 months ago
A low-end device (less than $150)
Released within the last six months
Released 12--18 months ago
There are two main reasons why you should pick your devices in this manner.
1. Device features will vary depending on the price. For instance,
more often than not, you will never see a dual core CPU in a
device for under $100. You should, however, still cater to those
who do not have the latest and greatest. This will allow you to
test against less capable devices and make sure your mobile
web app will degrade gracefully.
2. Device contracts end in cycles of 12, 18, and now 24 month.
This is the ideal time for users to upgrade their handsets and for
device vendors to release new hardware. Bearing this in mind,
you should opt to purchase a device that users will upgrade
from in 2--3 month's time. Again, this will help you test against
devices and ensure that your mobile web app degrades
gracefully.
If you can pick only one device, pick the latest and greatest. The device itself
will last you just over a year. If you aim to upgrade your devices on a yearly
cycle, you will end up with a good collection of older devices to test against and
the same or similar device that your users will be using.
For the purpose of this topic, I will be using an HTC Desire HD, an Asus Eee
Pad, and a Samsung Galaxy smartphone.
 
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