Here is 4 Drones Full Review with technical specification, features and more knowledge about these Drones.
1 Dji Mavic
| Folded | H83mm x W83mm x L198mm |
| Diagonal Size (Propellers Excluded) | 335 mm |
| Weight (Battery & Propellers Included) | 1.62 lbs (734 g) (exclude gimbal cover) 1.64 lbs (743 g) (include gimbal cover) |
| Max Ascent Speed | 16.4 ft/s (5 m/s) in Sport mode |
| Max Descent Speed | 9.8 ft/s (3 m/s) |
| Max Speed | 40 mph (65 kph) in Sport mode without wind |
| Max Service Ceiling Above Sea Level | 16404 feet (5000 m) |
| Max Flight Time | 27 minutes (no wind at a consistent 15.5 mph (25 kph)) |
| Max Hovering Time | 24 minutes (no wind) |
| Overall Flight Time | 21 minutes ( In normal flight, 15% remaining battery level ) |
| Image Size | 4000×3000 |
| Photo | JPEG, DNG |
| Video | MP4, MOV (MPEG-4 AVC/H.264) |
| Supported SD Cards | Micro SD™ Max capacity: 64 GB. Class 10 or UHS-1 rating required |
WI-FI
| Operating Frequency | 2.4G/5G |
| Max Transmission Distance | 80 m(Distance), 50m(Height) (Unobstructed, free of interference) |
| Max Speed | 14 km/h (9 mph) |
| Max Ascent Speed | 6.6 ft/s(2 m/s) |
| Max Descent Speed | 3.3 ft/s(1 m/s) |
CHARGER
| Voltage | 13.05 V |
| Rated Power | 50 W |
INTELLIGENT FLIGHT BATTERY
| Capacity | 3830 mAh |
| Voltage | 11.4 V |
| Battery Type | LiPo 3S |
| Energy | 43.6 Wh |
| Net Weight | Approx.0.5 lbs(240 g) |
APP / LIVE VIEW
| Mobile App | DJI GO 4 |
| Live View Quality | 720p@30fps, 1080p@30fps（Remote Controller） 720p@30fps(Wi-Fi) 720p@60fps, 1080p@30fps（DJI Goggles） |
| Latency | 160-170ms (depending on conditions and mobile device) |
| Required Operating Systems | · iOS 9.0 or later
· Android 4.1.2 or later |
Buy From this official website = https://www.dji.com/mavic
2 AirSelfi
Aeronautical grade anodized aluminium case
Robust and sleek, easy to carry wherever you go. Fruit of innovative and beautiful Italian design.
Turbo fan propellers
Four turbo fan propellers powered by brushless motors, safe to grab it while it’s still hovering.
5 MP Camera
AirSelfie features a 5 Megapixel HD video camera to shoot social-media-optimized images.
Ultra-lightweight
At just 61g, AirSelfie redefines portability. Compact and easy to carry with you anywhere you go.
SOPHISTICATED SENSORS
Stable, clear, flowing images are guaranteed by the vibration-absorber system and the in-flight stability systems (altitude sonar and stability camera).
4GB MICRO SD MEMORY CARD
AirSelfie comes with a built-in 4GB micro SD memory card. That’s more than enough space to store your growing bank of memories.
240MAH 7.4V BATTERY
With a built-in 240mAh 7.4 LiPo battery, AirSelfie has a flight time of three minutes. When it needs recharging, simply slip it back into your phone cover for instant power up or use the USB cable.
APP CONTROLLED
Control your flying camera directly from an intuitive app. Available for iOS and Android, the free app is incredibly user friendly and requires minimum instruction-study time.
PHONE COVER
Available for the most popular smartphones, including iPhone (6/6 Plus, 7/7 Plus), Samsung (Galaxy S7 Edge) and Google Pixel. The cover also acts as a charger, powering up your flying camera in just 30 minutes.
UP TO 1 HOUR FLIGHT
POWER BANK
The AirSelfie Power Bank is designed to be perfectly integrated with the flying camera. It gives you the possibility to charge it up to 20 times before running out of charge, thus allowing AirSelfie a flight autonomy of 1 hour overall.
Buy from This Official Website = http://www.airselfiecamera.com/
3 Hover Camera
Specification:-
- Folded Dimension = 182x132x33mm³
- Weight = 242g (including battery)
- Max Speed = 8m/s (17mph)
- Max Service Ceiling Above Sea Level = 2000m (6562ft)
- Max Hovering Time = 10min (no wind)
- Suggested Control Distance = Up to 20m (65 ft)
- Operating Temperature = 5-35°C (41°F-95°F)
- Wi-Fi Frequency Bands = 2.4GHz; 5GHz
Camera
- Sensor1/3.06″ (CMOS); Effective pixels: 13M
- LensFOV 78.4°; 28mm (35mm format equivalent);
f/2.0; Depth of field: 1.2-6.7m - ISO Range100-3200
- Pitch Range-90° to +30°
- Image Max Size4208×3120
- Video Recording Modes4K: 3840×2160 at 30fps
1080P: 1920×1080 at 30fps
720P: 1280×720 at 30fps - Photo/Video FormatJPEG/MP4
- Storage Capacity32G (including system files)
Battery
- Capacity1360mAh
- Voltage7.6V
- Energy10.34Wh
- Battery TypeLiPo 2S
- Weight71g
- Operating Temperature5-40°C (41°F-104°F)
Charger
- Input Voltage11-20V
- Power36W
- Output Voltage8.7V MAX
- Output Current2.8A MAX
- Adapter Input100-240V~50/60Hz, 1.0A
Buy From This Official Website =
4 TYPHOON H
Buy from this link =
https://www.amazon.com/Yuneec-Collision-Avoidance-Hexacopter-Controller/dp/B01AT4BKFU
Technical Knowledge 