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A project described as PhoneBot pairs a two-legged robot with a 2017 Android phone that supports its core sensing and movement controls. The robot’s hardware was estimated at about $400, excluding the phone; that figure is a reported estimate, not a current retail price or a complete cost including the handset.
What is PhoneBot?
PhoneBot is described in a Tech Xplore search-result summary as a two-legged robot that uses an Android phone as part of its control system. The summary identifies the handset as a 2017 model and says it supported core sensing and movement controls. The original reporting page was not available to verify the project’s identity and specifications against a primary source, so details beyond that description are not established here.
What does the $400 estimate include?
The reported figure is about $400 for the robot hardware, explicitly excluding the phone. It is an estimate attributed to Tech Xplore reporting, not a verified price to buy PhoneBot today. The available description does not provide a parts list, explain the estimate’s date or method, or establish whether assembly or other costs are included.
Can an Android phone act as a robot’s brain?
A smartphone can support important robotics functions, but the PhoneBot description only establishes a role in core sensing and movement controls. It does not establish that the phone performed all computation, ran a particular AI model, or was the robot’s sole controller. Those stronger claims require a project paper or technical specification.
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How PhoneBot differs from other phone-based robots
Other projects show that smartphones have been used in robotics, but their designs and reported costs should not be treated as direct comparisons with PhoneBot.
| Project | Form and phone role | Reported cost |
|---|---|---|
| PhoneBot | Described as two-legged; a 2017 Android phone supported core sensing and movement controls. Further architecture details are not established. | About $400 for hardware, excluding the phone; a reported estimate, not a current retail price. |
| University of California, Irvine smartphone-robotics platform | A 2013 research and education platform; its paper describes a neural network running on an Android phone during an outdoor foraging task. It is not described as a tiny humanoid. | $350, excluding the phone, as reported by the authors for that platform. |
| FlutterMind | A separate Android-powered, 3D-printed humanoid upper body. Its README describes USB-C OTG connection to Arduino motor controllers, two Arduino Nano boards, and 22 MG90S servos. | About ₹7,050 for the approximate parts total listed in its README, accessed in 2026. |
The projects differ in form, hardware, phone responsibilities, and what their cost figures cover. The reported amounts therefore do not establish which design is cheaper or performs better. FlutterMind’s README also says its servos need a separate power source rather than the Arduino 5V pin; that power guidance applies to FlutterMind, not PhoneBot.
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What remains unknown about PhoneBot
- The original paper or project page, authors, and publication date.
- The phone model beyond the reported year, and how it connects to or communicates with the robot.
- The robot’s full hardware and software architecture, including what runs on the phone versus other controllers.
- A bill of materials and the date and method behind the approximately $400 hardware estimate.
- Performance testing or evidence that would support comparison with other robots.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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