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How many devices should you buy?
When planning to purchase devices for a project, it's advised to buy an extra 10% on top of your total user count to compensate for potential losses, breakages, or for use in training and technical support. Historical data suggests a 2-3% rate of loss or theft over three years.
How should you select your devices?
See here: Mobile Device Selection
How should you test your devices?
Device Testing
Check each device shipment a few days after you get it, and note the Quality Control (QC) criteria based on the minimum specs and pre-installation documents. Decide on the sample size and approval thresholds, and make sure everyone knows their responsibilities for QC outcomes before procurement starts, including making sure vendors fix any hardware or pre-installation issues.
You should also conduct high-load and field sanity tests on the sample device with the application (see here: Test your Application Size (Load Testing) )
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Device Procurement
This page provides some high-level guidance about what types of devices that you can procure: Mobile Device Selection
When planning to purchase devices for a project, it's advised to buy an extra 10% on top of your total user count to compensate for potential losses, breakages, or for use in training and technical support. Historical data suggests a 2-3% rate of loss or theft over three years.
We recommend distributing devices at training sessions to ensure correct allocation and address issues in person.
Data Procurement
Many projects find that a monthly data allowance of 100 MB is sufficient. To estimate usage, consider that each form submission is roughly 7-10kb. For instance, submitting 20 forms daily over 25 working days requires about 5MB per month. For example, for a project where the FLW submits 20 forms a day, 25 days a month: 20 forms x 25 days a month x 10kb/form = 5MB
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How will you charge your devices?
Device charging is crucial, especially in areas with limited electricity. Solutions include home charging for those with electricity, providing solar chargers, or establishing central charging stations, which are cost-effective but have higher theft risks. In some cases, reimbursing charging costs may be necessary.
How will you set up your devices?
How will you distribute your devices?
We recommend distributing devices at training sessions to ensure correct allocation and address issues in person.
How will you manage your devices?
Below are some apps that we have used to support device management.
https://play.google.com/store/apps/details?id=com.teslacoilsw.launcher&hl=en
https://play.google.com/store/apps/details?id=com.gears42.surelock
https://play.google.com/store/apps/details?id=com.kiddoware.kidsplace&hl=en_US&gl=US
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Device Set-Up
For guidance on how to set up your devices, please visitPreparing Android Devices and Installing CommCare on Android Devices
Device Management
For organizations that are intersted in using a mobile device management system to manage their devices remotely, below are a few MDM tools that other CommCare partners use: