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To simplify the provisioning of custom applications using the ES400, Motorola includes the Motorola Enterprise User Interface, which is essentially an app launcher that's easily customized and populated with apps. Important or frequently used apps can be placed front and center where they're easily launched with the touch of a finger or stylus or highlighted and activated using the center button, which works like a kind of mini-trackpad.
Motorola says its phone works on the Sprint CDMA EVDO U.S.-based network, which in terms of speed is between 3G and 4G (a.k.a. 3.5G), but it also has a GSM /HSPA radio, and will work elsewhere in the world, but at 3G speeds. There's also a WiFi radio with push-to-talk and and voice over IP capability. Some clever software allows the user to "toggle" between the two networks easily.
The PenTile screen (from Samsung) is extremely bright (it's rated at 750 nits), and is purported to be far more power-efficient than conventional LCDs. The standard Lithium Ion battery is rated to provide six hours of talk time and 250 hours on standby. An option of extended battery doubles those specs. We charged the unit once, ran it continuously for several days and still had 87 percent battery life remaining.
While reviewing Motorola's ES400 Enterprise Digital Assistant all-in-one mobile device, an old phrase kept coming to mind: "Jack of all trades, master of none." What we found was to the contrary. The ES-400 performs some tasks masterfully, such as scanning and processing digital data, holding up to rugged treatment and displaying brightly for long periods of time. And while its outdated operating system and underpowered application processor caused it to stumble here and there, its performance for the most part was solid. We look forward to watching this device evolve.