Hardware
Eye-Fi was originally known for its Wi-Fi enabled SD Card product line which began commercial shipments in 2007. Starting in 2009, Eye-Fi Geo and subsequent products offered geotagging of photos using a Wi-Fi positioning system. Eye-Fi continually released upgraded versions of its hardware products, most recently the Eyefi Mobi Pro WiFi SD cards available in 16 GB and 32 GB capacities.
Eye-Fi Cards are compatible with virtually all digital cameras manufactured since 2010. Approximately 400 models from Canon, Nikon, Sony, Olympus, Casio and others also include Eye-Fi firmware built into their cameras under the Eye-Fi Connected branding. Eye-Fi Connected cameras are able to control various functions of the Eye-Fi Cards, including the ability to manually turn the Wi-Fi feature on/off.
The core feature of all Eye-fi Cards is the ability to automatically detect when a new image file has been captured on a camera.
Eyefi Mobi
Once a device running the Eyefi Mobi software detects the presence of an Eyefi Mobi Card, any new images captured on the Card are automatically sent to the device running the Eyefi Mobi app. This mode is referred to as "automatic transfer". In addition, the Mobi Pro product line provides for a "selective transfer" mode in which only photos designated by the user are transferred to the Eyefi Mobi app. Identification of which files to transfer is accomplished using an in-camera operation, usually consistent with files designated as "protected" or "locked".
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Initial set-up of Eyefi Mobi and Eyefi Mobi Pro Cards is accomplished by installing the Eyefi Mobi app on the user's device. Once installed, the user is directed to insert the Eyefi Card into their camera and to capture a photo or video. When users start the Eyefi Mobi app on their device the first time, they are prompted to enter the "activation code" for their Eyefi Card. The activation code is provided on a card inside the Eyefi product packaging. Once the user enters the code into the app, the Eyefi Card will begin transferring new files to that device. The set-up operation must be completed for any device to which the user wishes to transfer images from their camera. Once completed, there is no need to repeat the set-up.
Eyefi Mobi Pro products support two major Wi-Fi network types - so called "direct" and "infrastructure" wireless networks. A direct network connection is a peer-to-peer transfer between the Card and the device running the Eyefi app. Infrastructure transfer is accomplished when both the Card and the device running the Eyefi Mobi app are within range of the same router based network. In the latter case, the Eyefi Mobi Pro card must be set-up to recognize the SSID and password of the router-based network. Configuration of the Eyefi Mobi Pro Card to enable selective transfer as well as set-up for router based transfer is accomplished using the Eyefi Mobi Desktop apps on Mac and Windows PC platforms. Eyefi Mobi Cards only support direct mode, automatic file transfer, so no desktop set-up is required.
The card was designed by Eye-Fi and is manufactured in Thailand with proprietary and off-the-shelf components.
Software
Eye-Fi released all new software starting in June 2014 based on the Eye-Fi Mobi product line.
Eye-Fi Mobi and Eye-Fi Cloud
The Eye-Fi Mobi apps and desktop software are proprietary software products available for Apple and Microsoft's desktop and mobile operating systems, and Google's mobile operating system. Third-party free software exists to enable Eye-Fi cards to be accessed from Linux but the platform is not officially supported.
Eye-Fi Mobi apps are able to receive photos and videos from cameras equipped with the Eye-Fi Mobi WiFi SD memory card. The company announced in October 2015 that the apps will also directly connect to cameras with built-in Wi-Fi radio modules such as GoPro, and selected models from Canon, Casio, Nikon and Olympus.
New photos and videos received into Eye-Fi Mobi apps are saved locally to the native device and optionally can be synchronized to the Eye-Fi Cloud "storage" service. Eye-Fi Cloud provides a hub for all user devices to sync their private photo collection. Original image files are retained in Eye-Fi Cloud and photo are then saved in a compressed JPEG file format to save space on synchronized devices. The original files are always available via browser access to Eye-Fi Cloud (app.eyefi.com). Video files transferred to Eye-Fi Cloud are also saved in their original format but are also transcoded into a streaming media format. Once transcoded, videos can be played back on inside Eye-Fi Mobi apps and within a browser via in-app streaming at 480p resolution.
Beyond storage, Eye-Fi Cloud also provides a range of features designed to simplify organization, access and sharing of private image collections. The enhanced features include machine learning-based analytics of a photo collection, branded as Smart Tags, search based organization "Smart Views" as well as more traditional tagging and album creation. Sharing is accomplished via a variety of methods and generally intended for limited private sharing to individuals and small groups.
Eye-Fi Cloud is free for one year following activation for users who purchase an Eye-Fi Mobi Pro version of the products. Eye-Fi Mobi apps are free for perpetual use with any Eye-Fi Mobi branded product. Eye-Fi Cloud for smartphones and cameras with built-in Wi-Fi is available only to users with a 30-day or 1-year subscription. As of October 2015, the monthly subscription for Eye-Fi Cloud was US$4.99 and the annual subscription was $49.99. Active Eye-Fi Cloud subscriptions support unlimited storage for photos and up to 300 videos of up to 15-minutes per month.
In 2016, Eye-Fi Cloud was purchased by a subsidiary of the Japanese company Ricoh, and rebranded as Keenai. The service is defunct as of December 1, 2018.