HGLRC Rekon4 FR HD Zeus 25 AIO CADDX Polar Vista Digital Kit 1804 3500KV 4S 180mm 4inch Micro Long Range Drone Sub250g Freestyle

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Rekon 4 FR

About the design

I developed the Rekon 4 FR to create a sub 250g freestyle platform that gests as close as possible to a “classic” five-inch quad. And while performance was the main objective, I still wanted it to be practical for everyday use:

– A robust frame with quick swap arms that can take hard crashes and offers good component protection.

– The option to carry light HD cameras (Naked GoPro, SMO, Insta 360).

– Compatibility with a widely available battery sized (650-850mah 4S).

– And finally, have some margin towards the sub 250g goal, so you do not have to worry about every gram of wire or tape you add to your build (if you are choosing the frame kit instead of the BNF).

Why 4 inch?

  1. A 4″ platform can be built sub 250g pretty comfortably and you will be able to carry a relatively large battery for 4-6min of aggressive freestyle. The disc load is lower than on a sub 250g 5″, making it less floaty and having more momentum when you “throw” the quad during freestyle tricks.
  2. A 4″ quad can carry a naked GoPro type camera easily and without a noticeable impact on flight performance. The analogue version is still sub 250 with a 25g naked GoPro and a 650mah 4S (unfortunately the digital version is not since the vista adds around 14g)
  3. 4″ t-mount props have gotten pretty mainstream and there is a decent choice and availability (which is not the case for 3.5″)

Motor & prop choice

The motor and propeller configuration was crucial to achieving the desired flight characteristics. After weeks of testing, I finally settled for an intermediate stator size with an aggressive kV. A stator larger than 1804 (e.g. 1606, 2004, 2204) didn’t seem to offer any noticeable improvement of flight characteristics while adding a significant amount of weight. Anything smaller than 1804 just did not have enough torque to make the quad feel locked and snappy enough.

The best performing props were the Gemfan 4023 tribades. They are more on the aggressive side in comparison to the HQ T4x2x3 and while they can be pretty amp hungry on the relatively high kV 1804 motors, they ensure the quad has an impressive punch!


Product name: Rekon4 FR Freestyle FPV Drone 4S HD Version


Rekon4 FR Freestyle Frame

Model:4-inch Frame

Wheelbase:180 mm

Size:180*140 mm

Zeus25 V2 AIO 3-6S flight controller

Input voltage:3-6S

FC firmware:BF ZEUSF722_AIO (HGLR)


CADDX Polar vista kit

Operating frequency:5.725-5.850 GHz

Input power:about 7.4-26.4V


Rekon 1804 3500KV motor


Input voltage:3-4S

Recommended blade:4 inches

Gemfan 4023 4-inch 3-blades propeller

Quantity:4 CW & 4 CCW

Package list:

1x Zeus25 V2 AIO 3-6S flight controller

1x CADDX Polar vista kit

1x Rekon4 FR Freestyle Frame

1x Rekon 1804 3500KV motor

8x Gemfan 4023 4-inch 3-blades propeller

1x Hammer Antenna (L Screen Printing)

1x receiver (optional)

Recommended battery:


Item Specifics
Brand Name:
Recommend Age:
Tool Supplies:
Upgrade Parts/Accessories:
RC Parts & Accs:
Model Number:
Rekon4 FR HD
Remote Control Peripherals/Devices:
For Vehicle Type:
Four-wheel Drive Attributes:
Shipping & Payment


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Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-20 Business days
Canada, Europe 10-20 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

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Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


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*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


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Please do not send your purchase back to us unless we authorise you to do so.

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