Rank #7 in Best Metal Detectors 2026: 10 Ranked, and the Coil Spec That Says 12cm
GreenRex Waterproof Metal Detector for Adults, 5 Modes
- Rating
- 4.4
- Ratings
- 649
- Rank
- #7
Price and rating as shown on Amazon when we collected them. Both change.
GreenRex's entry at number seven in this guide is a £119.99 adults' detector with a 4.4-out-of-5 rating from 649 ratings, a coil rated IP68, five detection modes and a backlit LCD the listing says is 50% bigger than standard. The listing sells it on accessories as much as electronics: headphones, a foldable shovel, two batteries and a carrying bag are all listed as included.
The figure that does not hold together on this page is the unit count. The specification table records a unit count of 1.0 gram next to an item weight of 2.78 kg — a 2,780-fold gap between two numbers describing the same box, and one of them plainly is not the detector. Two smaller gaps sit nearby: the bullets say the shaft adjusts up to 132 cm while the table gives a height of 135 centimetres, and the title's "Waterproof" is qualified by the bullet itself with "(Note: Control box is not waterproof.)". Everything below comes from the Amazon listing as it appears, not from any testing we carried out.
How those 649 ratings break down
An average hides its own shape. This is the spread behind the 4.4 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £119.99 |
|---|---|
| Rating | 4.4 out of 5, from 649 ratings |
| Search coil size | 25.4 centimetres in the spec table; the title calls it a 10'' IP68 coil |
| Item weight | 2.78 kg |
| Unit count | 1.0 gram (as listed) |
| Item dimensions | 25.4L x 25.4W x 135H centimetres |
| Maximum stated length | 132 cm in the bullets against 135 cm in the spec table |
| Waterproofing | Coil rated IP68; listing adds that the control box is not waterproof |
What it is up against
The rivals it was ranked against in Best Metal Detectors 2026: 10 Ranked, and the Coil Spec That Says 12cm.
Rank #1
Minelab X-Terra Elite All-Terrain Waterproof Metal Detector
£479.00
Rank #2
Minelab Vanquish 360 Waterproof Metal Detector with V10X Coil
£259.00
Rank #3
DR.ÖTEK MTXR Metal Detector for Adults, 5 Modes, 10in Coil
£85.99
Rank #4
SUNPOW Metal Detector for Adults, 5 Modes, 30cm Coil Claim
£79.98
Questions people ask
How many modes does the GreenRex have?
Five, as listed, although the bullet text is cut off after naming only All Metal and Disc.
Is the GreenRex waterproof?
The coil is IP68 and the listing says it works in shallow water; the same bullet adds that the control box is not waterproof.
What comes in the box with the GreenRex?
Premium headphones, a foldable shovel, two batteries and a carrying bag, according to the listing, which also answers "Are Batteries Required: Yes".
How heavy is the GreenRex?
The spec table gives an item weight of 2.78 kg and a unit count of 1.0 gram; two figures that cannot both describe the detector.
How big is the search coil?
The title calls it a 10'' IP68 coil and the spec table lists 25.4 centimetres — which is 10 inches, so those two agree.
What is the GreenRex model number?
The Model Number field reads "/" and the Manufacturer Part Number is REX-8.
Comments
Reader comments are not checked against the manufacturer's claims above.
No comments yet
Be the first to add something we missed — a price change, a spec that turned out wrong, or how one of these held up.
Leave a comment
No account needed. Own one of these? Tell other readers how it actually performed.