ZEROTECH Dobby Pocket Selfie Drone

The highly anticipated DOBBY is here and in our lab, compact and optimized for photography, taking pictures by voice control and gesture control, assisting users to capture the perfect selfie “Kodak” moment of this generation.

DOBBY Pocket Drone is an AI-powered drone using Qualcomm Snapdragon 801 chipset, piloted with GPS and GLONASS, featuring object tracking and facial recognition. DOBBY can take off by voice control and one click on APP. Selfie lovers can enjoy creative photos from unique perspectives rather than taken by other shooting tools like cell phone cameras.

If you are into smartphone technology Qualcomm comes to mind; anyone who uses Wechat or QQ knows what Tencent can do.  Known to few, the two giant firms are among the core influence to bring ZEROTECH to the limelight with Dobby. However with all that investment backers and publicity behind it, there seem to be an underlying issues uncovered as we take it for several tests.


First Impression
The highly anticipated crowd funded DOBBY quadcopter is here.   The DOBBY Pocket Drone came in a familiar box looking like an Apple product.  Very elegant indeed.  In the box, you will find a folded quadcopter, a size of a smart phone.  Included is a USB charger,  usb adapter, a proprietary smart battery,  basic instructions and warranty card.

What I have found is you may need to use the USB charger provided, as a generic charger may not feed enough power.  You can tell by looking at the light, if it does not turn orange while fast charging.  The battery last just about 7 minutes or less in flight.   You can check the battery status by pressing the status button.

Video and photos are recorded directly on to Dobby internal memory storage (no SD card needed), I believe about 9 GB of free space.  It is viewable when connected and can be downloaded on to your device. Video and photos are sharp and crisp I must say.  Videos have a jello movement to it, due to amount of vibration generated by the hinged propellers.  The best way to transfer your video and photos to your computer is to attach the USB cable with the adapter and connect your Dobby to a computer.  A new USB device will be detected and a new drive will be assigned, where you can just drag and drop your files over to your computer.

Before each flight, you begin by extending the arms, it locks in when fully extended.  You then adjust the camera angle manually.  They lock in to each fixed angle to match the app image stabilization.  45 degrees is required if you plan to use the Follow Me Target feature.  You can have the camera face directly down for a full unobstructed aerial view.

At the current moment 720P is all I can record, but my understanding resolution should be higher.

The camera orientation is default to selfie, face to head, so careful with it, the quadcopter will be flying reverse.  You can change it to Face to Tail, the more convectional way of flying RC.

You can see here, the Optical Flow and ultrasonic sensor, which helps with position hold, palm take-off and palm landing.  The ultrasonic emits a sound wave that the human ear is unable to detect, but may be sensitive to some animals, so keep your pets away.

The firmware and guide has just been released after several months.  Make sure to update your Do.Fun app which will then prompt you to update the latest firmware.  The latest user guide can be found within the Do.Fun app.

User Segment
Selfie Addicts, Beginners, Park Flyers, Ready To Fly, Off the shelves, Collectors, Budget $409 (source: August 2016 Banggood Price Check)

What to Expect

The Dobby has difficulty picking gps signal indoors, not that we recommend that anyone fly indoors.  In novice mode it will not take off without 7 gps count.  We suggest that you fly outdoors as it is too hazardess indoor, besides the optical flow sensor requires sufficient light to work properly.

It is a selfie drone, so careful to face the camera to yourself, or you will find yourself flying in reversed.  Remember the camera is on the tail end of the quadcopter.

It is clear that Zerotech had release the product prior to the functionality being complete.  The App was updated late August 2016 to support some of the functions promised, but seem to require more testing to be comfortably certain it works.

Target function requires the Dobby to be over 5m function.  It does seem to recognize it is over 5 meters.
The flip function is always saying “low power, cannot use this function”
The Face recognition says “coming Soon”
The return home seem to be 6+ feet away

Factory Specifications

  • Item Name: Zerotech Dobby Pocket Selfie Drone
  • Quadcopter Weight 199g (DM)
  • Size unfolded:135mm×145mm×36.8mm
  • Folded:135mm×67mm×36.8mm
  • Maximum altitude 3000m
  • Life time 9 mins(0 elevation)
  • Working temperature 0 ~ 40°C
  • GPS Outdoor: GPS / GLONASS dual-mode
  • Optical flow + Ultrasonic (illuminance> 15 lux)
  • Maximum rise height with GPS mode According to national legislation
  • Control distance 100m (open area without interference)
  • Maximum rise height with light streaming mode 3m
  • Hovering Accuracy Vertical: +/- 0.1 m (optical flow positioning during normal operation); +/- 0.5 meters (outdoor)
  • Horizontal: +/- 0.3 m (optical flow when targeting normal operation); +/- 1.0 meters (outdoor)
  • Wi-Fi WiFi frequency bands 2.4GHz : 5GHz
  • Emission Power EIRP 2.4G: 19dBm
  • EIRP 5G: 25g dBm
  • Camera Image sensor 1 / 3.06 inches CMOS; effective pixels 13 million
  • Lens FOV 75 °; 28mm (35mm format equivalent); f / 2.2; infinity focus
  • Camera tilt range -90 ° ~ 22.5 °
  • Maximum photo resolution 4208 × 3120
  • Photo shooting mode Single camera
  • Delay pictures
  • Beauty pictures
  • Multi Burst (BURST): 2 ~ 15 sheets
  • Video capture mode 10s Autotrack short video shooting
  • HD video capture
  • ISO range 100~3200
  • EV range – 12; – 8; –4; 0; 4; 8; 12
  • Delay shooting 3s / 5s / 10s / 20s
  • Video resolution 4K @ 30fps image stabilization 1080p @ 30fps
  • Storage format JPG / MP4 (MPEG-4 AVC / H.264)
  • Storage capacity 16G
  • USB Interface Type Micro-USB Interface
  • Battery Rated capacity 970mAh
  • Rated energy 7.37Wh
  • Nominal voltage 7.6V
  • Battery Type LiPo 2S
  • Charging Ambient temperature 0 ~ 45 ° C
  • Discharge ambient temperature 0 ~ 45 ° C
  • Charge limit voltage 8.7V
  • Charging Dock Interface Type-C
  • Voltage 9V
  • Rated power 15W
  • App App name: Do.Fun
  • Real-time image transmission: 640×480 @ 30fps; 320 × 240 @ 30fps
  • Delay 160ms (depending on the actual shooting environment and mobile devices
  • System version of Mobile: Android 4.3 and above iOS 8.0 and above

The Camera
The camera maximum video resolution 4K @ 30fps image stabilization 1080p @ 30fps and photo resolution 4208 × 3120 with image sensor 1 / 3.06 inches CMOS; effective pixels 13 million Lens FOV 75 °; 28mm (35mm format equivalent); f / 2.2; infinity focus.

Similar Model Aircrafts
Users have considered these 2016 alternatives: WINGSLAND S6

In terms of ranking, I would say it is in the top 5 favorites during this release recorded August 2016.  An update to follow.   (Current Picks

App installation

DOBBY Do.Fun can be downloaded at the app store.v.1.1.0 was just added Aug 26, 2016 in a rush to meet the releases.

Flight Tests in progress, be back with videos..  source:  Join us, you are welcome to share your reviews, photos and videos here

A Project

Editorial from the News Press Team


Voyager 4 News Press

1. About Voyager 4

Voyager 4 represents the pinnacle of Walkera’s 12 years of radio control aircraft design, a unique fusion of both aerodynamics and aerial video technology.  The goal of the Voyager 4 is to engineer an  integrated platform for various application meeting the needs of news broadcasting, search and rescue, aerial surveys, maritime air patrol, police work and environmental monitoring.  To achieve that, Walkera is the first to introduce 2.4 gHz and 4G remote control and video streaming, expanding the range as far as you can, as long as you have 4G mobile network.  Included is a precise  3-axis gimbal stabilization and a 18x optical zoom HD camera with a 10mm-1500mm wide angle-telescopic lens.

For Immediate Release – Walkera, DM

2. Two system configuration to meet your specific needs.

  • WIFI HD Edition, Profession Edition
  • 4G HD LTD Edition, Global Solutions
  • 4G
  • 4G Internet, flying without geographic limitations
  • Supports 4G LTE mobile network, when there is 4G, a user can control the Voyager 4 from anywhere and anytime without geographic limitations
  • 150⁰ range to your left and to your right is literally at your fingertips and with one simple control you can see and record images behind, below, and even slightly  above wherever you are flying

3.  18x optical zoom HD 4K 30 fps camera with a 10mm-1500mm wide angle-telescopic lens and a 1/2.3 SONY IMX117 CMOS sensor.

4. View live, wireless HD video transmission across the net without geographic limitations using a phone, tablet or personal computer

5. An all new integrated gimbal, 10 times faster and precise camera stabilization system to provide smooth cinematic video.  300⁰ range allowing you to see and record images behind, below and above.

6. All new flight system

  • One key control switches to make flying easier
  • One key to return / One key to start / One key to descend / Orbit mode / Way points / Point to point
  • Functional modular design, making maintenance easier

7.  A new elegant Devo F8W radio transmitter, designed for aerial photography

  • Compact and elegant, sensitive control sticks and buttons, with a range up to 1.5km.
  • Professional radio transmitter that provides you that confidence to pilot the Voyager 4.
  • Dedicated switches to control specific functions
  • Dedicated controls for taking photos and videos, adjusting angles of camera, controlling flight direction and to return home with one key.
  • Individual setting, customizable function keys. The Devo F8W can accommodate different control preferences, all the function keys can be customized, fly it the way your wish.
  • Convenient one step remote sensing mode switch to accommodate different countries and personal preferences for different flight modes

8. Intelligent power management system.  Voyager 4 build-in intelligent battery management system provides better protection for the aircraft and battery.  While flying, the Devo F8W radio telemetry system will display real-time remaining battery power, automatically analyze and calculate the return and landing time.

9. Walkera APP supports a selection of functions. 

Zoom control/gimbal adjustment/battery display/GPS signal/remote
signal/photography/flight mode/map display/share

10. Multiple applications

Fire emergency / Police reconnaissance / City management / Environment
monitoring / Emergency rescue / Scene detection


Voyager 4 Specifications

Model Voyager 4
Weight (include battery) 3200g
Maximum Pitch Angle 35°
Maximum Ascending Velocity 5m/s
Maximum Descent Velocity 4m/s
Maximum Horizontal Flight Speed 20m/s
Maximum Flight Altitude 1000m
Maximum Affordable Wind Speed 10m/s
Flight Time 20mins
Environment Temperature “-10° to 40° C
Wheel Base 580mm
Maximum  466 x 464 x 367mm
Video Resolution: 4K 30fps
Photo Resolution: 4608 x 3456
Focal Length: 6.7-134.5mm
Zoom Ratio: 18x optical zoom
Zoom Speed: about 2.0s
Sensor: 1/2.3 SONY IMX117 CMOS
ISO Range: 100-3200(Video) / 100-1600(Image)
Horizontal View: 59.8°- 3.0°(Wide Angle-Telescopic)
Close-shot Distance: 10 – 1500mm (Wide Angle-Telescopic)
Bitrate: 16Mbps
Compress Standard: H.264 / H.265
Files Format: JPG/MP4
Day/Night Mode: ICR”
Image Shooting Mode Program Automatic Shooting
Support Micro-SD Micro SD/SDHC/SDXC Micro-SD;
64GB Class 10 UHS-1  MicroSD
Support Micro-SD SD/SDHC Card(16G)
Environment Temperature -20℃~+60℃
Standard Battery 22.2V 4500mAh
Name Intelligent Flight Battery
Capacity 4500 mAh
Voltage 22.2 V
Model LiPo 6S
Flight Time 20mins
Energy 104.34 Wh
Working Environment Temperature Temperature: -10° to 40° C
Storage Environment Temperature >3 Months: -20° to 45° C,<3 Months: 22° to 28° C
Charge Environment Temperature 0° to 40° C
Optional Battery 22.2V 9000mAh
Flight Time 36mins
Model Zoom Gimbal
Angel Jitter ±0.01°
Gimbal Installation Detachable
Controllable Rotation Range Pitch: -90° to +30°
Yaw: ±90°
Supply Voltage 12V
Supply Current 0.7A
Remote F18
Name F18
Remote Range 1.5km
Power Supply Mode Li-Poly Inside
Charge Mode Dedicated Charger
Tablet Bracket Standard
Battery 8000 mAh LiPo 2S
Endurance 48H
HDMI Support goggle – TBD
Walkera APP  IOS