Quick Answer: The XP Deus II WS6 Master (~$799) is a fully wireless metal detector weighing just 750 grams (1.65 lb) with its 9-inch coil — XP’s own spec sheet calls it the lightest detector in the world, over 30% lighter than typical competitors. It runs XP’s FMF (Fast Multi-Frequency) engine across 49 selectable frequencies from 4 to 45 kHz, with the search coil waterproof to 20 m (66 ft) but the WS6 headphone module rated rainproof only. It’s a strong buy for detectorists who prioritize all-day wireless comfort over full submersion.
The Deus II WS6 Master anchors our XP lineup guide as the brand’s best-overall pick, ahead of the mid-tier ORX and the wired, beginner-friendly ADX150. This review digs into whether the fully wireless architecture and FMF engine are worth the jump over cabled flagships from Garrett, Minelab, and Nokta.
Last verified August 26, 2026: Re-checked current pricing at Detector Warehouse — the WS6 Master 9” package holds at $799 (down from an $879 list), consistent with our XP lineup guide’s last price check on July 31.
XP Deus II WS6 Master at a glance
| Spec | XP Deus II WS6 Master |
|---|---|
| Price | $799 (9" coil bundle), $1,299 for the Remote package |
| Frequency | FMF — simultaneous multi-frequency or 49 selectable single frequencies (4-45 kHz) |
| Wireless | Yes — coil, WS6 control puck, and headphones, zero cables |
| Coil | 9" FMF standard (11" and 13x11" also available) |
| Waterproofing | Coil to 20 m (66 ft) — WS6 module rainproof only, not submersible |
| Weight | 750 g (1.65 lb) with 9" coil |
| Battery | Headphones ~15 hrs (365 mAh), coil 8-20 hrs (700 mAh), <3 hr recharge |
| Warranty | 5 years (XP, authorized dealers) |
| Best for | All-day wireless comfort, multi-site frequency tuning |
XP Deus II WS6 Master
- Coil, WS6 control puck, and headphones communicate wirelessly over XP's patented radio protocol — no cables anywhere on the machine.
- FMF engine scans multiple frequencies simultaneously or lets you select one of 49 single frequencies from 4 to 45 kHz per site.
- 750 grams (1.65 lb) with the 9-inch coil, backed by a 5-year manufacturer warranty through authorized dealers.
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FMF: the engine behind the Deus II’s flexibility
FMF (Fast Multi-Frequency) is what separates the Deus II from XP’s single-frequency ORX and ADX150. Instead of locking you into one frequency, it either runs several simultaneously for general-purpose ground or lets you hand-pick one of 49 discrete frequencies between 4 and 45 kHz to match a specific site — low frequencies for larger, deeper targets like relics, higher frequencies for small gold and jewelry. That tunability is why the Deus II tops our XP lineup guide rather than the ORX, which shares the wireless architecture but only offers a single selectable frequency at a time.
Weight, battery, and the coil-only waterproofing trade-off
At 750 grams (1.65 lb) with the 9-inch coil, the Deus II WS6 Master is genuinely lighter than almost anything else in the hobby — XP’s own materials put it over 30% under typical competing machines, and there’s no cable running up the shaft to add drag or catch on brush. Battery life follows the wireless design: the WS6 headphones (365 mAh) run about 15 hours, the coil’s internal battery (700 mAh) runs 8-20 hours depending on which frequency programs are active, and both recharge fully in under 3 hours over USB — see our battery guide for how that stacks up against AA-powered machines like the Garrett AT Pro.
The trade-off is waterproofing. The search coil is rated to 20 m (66 ft), plenty for wading or a shallow submersion, but the WS6 control and headphone module is rainproof only — not built for a dunk. That’s a real gap against the Nokta Legend 2 and Minelab Equinox 900, both IP68-rated and submersible to 5 m (16 ft) as complete units. Surf-line and river hunters should weigh that before buying — check our waterproof detector guide for machines built for full water entry.
XP Deus II WS6 Master vs Deus II Remote
| XP Deus II WS6 Master | XP Deus II Remote | |
|---|---|---|
| Price | $799 | $1,299 |
| Core engine | FMF multi-frequency | Same FMF engine |
| Control | WS6 headphone puck menus | Adds dedicated remote-control unit |
| Coil options | 9", 11", 13x11" | Same 9", 11", 13x11" options |
| Best for | Lightest, simplest setup | Full on-the-fly menu access |
Both packages run the exact same FMF electronics — the $500 gap buys a dedicated remote unit for adjusting settings without pulling up the headphone menu, not additional detecting power. Buyers who rarely change settings mid-hunt save $500 with the WS6 Master; buyers who like fast in-field tuning across multiple sites get more control from the Remote.
XP Deus II vs Nokta Legend 2: wireless weight vs full submersion
| Spec | XP Deus II WS6 Master | Nokta Legend 2 |
|---|---|---|
| Price | $799 | $999 |
| Weight | 750 g (1.65 lb) | 2.6 lb |
| Waterproofing | Coil only (20 m); module rainproof | IP68, full unit to 5 m |
| Headphones | Wireless standard | Wired unless a wireless module is added |
| Warranty | 5 years | 3 years |
The Deus II wins on raw weight and out-of-the-box wireless simplicity, plus a longer 5-year warranty. The Legend 2 wins on water sealing — a genuinely submersible unit versus the Deus II’s coil-only rating — and reads 99 target IDs against fewer selectable frequencies on the XP side. Dry-ground and relic hunters lean Deus II; beach and river regulars who want to swing straight into the surf lean Legend 2.
Who should buy the XP Deus II
- Detectorists who hate cables — coil, control unit, and headphones are wireless out of the box, a genuine first-in-hobby feature XP pioneered with the original Deus.
- Multi-site hunters — 49 selectable frequencies plus simultaneous multi-frequency scanning cover relic, coin, and jewelry ground without buying a second machine.
- Buyers who want the lightest swing available — 750 g with the 9” coil is lighter than almost every cabled competitor, reducing shoulder fatigue on long sessions covered in our relic-hunting guide.
- Surf and river hunters should look elsewhere or budget for care — the WS6 module isn’t submersible; the Nokta Legend 2 is a safer full-water pick.
- Verify the seller before buying. XP’s 5-year warranty runs through authorized dealers — check the “Sold by” line on any Amazon listing before checkout.
The bottom line
The XP Deus II WS6 Master backs up its lightest-in-the-world claim with a genuinely useful FMF engine and a fully wireless build that cabled competitors still can’t match. Its real limitation is waterproofing — the coil handles 20 m, but the control module is rainproof only, a step behind the fully submersible Nokta Legend 2 and Minelab Equinox 900. For dry-ground and wading hunters who want the lightest, most flexible machine in the hobby, the Deus II earns its spot atop our XP lineup guide.