Photos: Deeper · supplied retailer imagery
Tools · Smartphone mounts · Our take
Deeper Smartphone Mount Phone Holder
FLACC04
A lightweight way to keep your Deeper screen beside your reel hand. The catch? Its stated 3.5–5-inch phone compatibility leaves plenty of modern handsets outside the range.
- Designed to fasten a smartphone to a fishing rod grip.
- Stated phone compatibility: 3.5–5-inch screen diagonal.
- Weighs 14 g and measures 120 mm.
- Supplied with one smartphone mount and four mounting O-rings.
Make sure it’s the right one. This is the silicone-and-plastic rod-grip mount, supplied with four mounting O-rings. It's a phone holder, not a sonar unit.
Tackle Index Score
Tackle Index score
Provisional desk-based scores for the design and stated features, not bank-tested results; value is judged on usefulness rather than an assumed selling price.
- Product Quality7.7/10
- Performance7.7/10
- Impact on Fish Catching6.1/10
- Ease of Use8.3/10
- Value for Money7.2/10
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Who it suits
Is it right for you?
Great for
- Deeper users with a compatible smaller phone. It puts the display on the rod grip, where you can glance at it while retrieving the sonar.
- Anglers using a dedicated feature-finding rod. Keeping the phone and scanning setup together can make checking different lines through the swim more organised.
Maybe skip if
- Owners of larger modern smartphones. A handset above the stated 5-inch screen limit is outside the published compatibility range.
- Anglers wanting an unobstructed fishing-rod grip. A mounted phone takes up space around your hands and may be better kept off the rod you're actually fishing with.
The lowdown
Introducing the Deeper Smartphone Mount Phone Holder
A lightweight way to keep your Deeper screen beside your reel hand. The catch? Its stated 3.5–5-inch phone compatibility leaves plenty of modern handsets outside the range.
- Designed to fasten a smartphone to a fishing rod grip.
- Stated phone compatibility: 3.5–5-inch screen diagonal.
- Weighs 14 g and measures 120 mm.
- Supplied with one smartphone mount and four mounting O-rings.
Quick verdict
A tidy idea with one big fit check
If you've got a phone within its stated size range, this is a straightforward way to keep the sonar display close while you're working a Deeper back through the swim. Light, simple and made for the job.
Check your handset before you buy, mate. The stated 3.5–5-inch screen range is restrictive by today's standards. We haven't tested the mount on the bank, so grip security and handling here are informed judgements rather than hands-on findings.
Provisional desk-based scores for the design and stated features, not bank-tested results; value is judged on usefulness rather than an assumed selling price.
- Product Quality
- 7.7/10
- Performance
- 7.7/10
- Impact on Fish Catching
- 6.1/10
- Ease of Use
- 8.3/10
- Value for Money
- 7.2/10
The silicone-and-plastic construction is straightforward and lightweight, though long-term durability hasn't been verified.
The rod-mounted layout serves a clear viewing purpose, but secure retention and comfort remain untested.
Easier screen viewing may help your scanning routine, but the holder itself doesn't improve sonar readings or guarantee better swim choices.
Included mounting O-rings and corner retainers keep the concept simple, although handset compatibility needs careful checking.
It offers useful convenience for regular users with compatible phones, but its narrow handset range limits its appeal.
Head to head
How it stacks up
Side by side with the closest kit we've reviewed. This updates as we add more reviews.
Deeper
Deeper Smartphone Mount Phone Holder (this one)
Top scorer
Top scorer
Scores are our own, out of 10. Best in each row is in green. Prices change, so check the latest before you buy.
The full rundown
Everything you'll want to know about the Deeper Smartphone Mount Phone Holder
If you use a Deeper to have a nose around a swim, you'll know the juggling act this sort of accessory is meant to tackle. Rod in one hand, phone in the other, and somehow you've still got to turn the reel handle. The Deeper Smartphone Mount puts a compatible handset on the rod grip instead. Nothing flashy, mate. Just a small holder intended to keep the screen close while you bring the sonar back and watch what changes beneath its path through the water.
That makes sense when you're doing a deliberate bit of feature finding rather than chucking out and hoping. A steady retrieve lets you follow changes in the display without constantly parking the rod to look at your phone. You're still responsible for making sense of what you see, of course. A change in depth can be useful; it isn't a promise that a lump is waiting there. The mount's job is simply to make viewing more convenient, not to turn an ordinary scan into a guaranteed bite.
The exact version here is the FLACC04. It measures 120 mm and weighs 14 g, with a stated material split of 84% silicone and 16% plastic. Four silicone retainers hold the phone's corners, and there are four orange plastic hooks. The box contains the mount plus four mounting O-rings. That's a fairly modest bit of tackle to tuck away with your sonar gear. Just remember that the handset, rather than this little holder, will account for most of the weight you're adding to the grip.
There's one detail you really shouldn't skip: Deeper gives the compatible screen diagonal as 3.5–5 inches. Plenty of current phones are bigger than that, so don't see the word smartphone and assume you're sorted. Check the size of your actual handset before spending anything. An older, smaller phone you already use for the sonar might make a more natural partner, provided it still runs your app properly. We'd also check how any case affects the fit rather than assuming a chunky protective cover won't matter.
Deeper says the mount fits any type of fishing rod, but that's about the intended mounting versatility, not a guarantee that every position will feel comfortable. Your grip layout, reel position and where you naturally put your hands all matter. Before heading anywhere near the water, fit it somewhere safe and check that you can hold the rod and turn the handle without knocking the phone. You want a useful view of the screen, not an awkward lump sitting exactly where your fingers need to go.
For carp fishing, the neatest use looks to be on a dedicated scanning setup while you're working out where to fish. Have a look along a few sensible lines, note any depth changes that interest you, then decide what deserves closer attention. Don't confuse having the display within reach with having the whole swim figured out. Sonar is one part of the picture alongside showing fish, wind, cover and what you can establish about the bottom. This holder changes the handling of that process, not the quality of those clues.
There are practical limits, too. Corner retainers aren't a waterproof enclosure, and putting your phone on a rod doesn't suddenly make it immune to rain, splashes or a clumsy knock. Take care over the bank edge and check the fit before each use. It's also sensible to remove the handset before packing the rod away rather than leaving it sticking out among other gear. Small habits like those matter more than a clever accessory when the thing you're attaching is a phone you'd be properly gutted to lose.
We haven't tested this mount on the bank, so we're not claiming it stays rock-solid through every cast or that it makes a long scanning session more comfortable. What we can say is that its purpose is clear, its own weight is low and the included O-rings mean you're getting the mounting pieces in the box. For the right smaller phone, it's a tidy idea. For a handset outside that stated size range, the sensible move is to find a holder that explicitly suits it.
Specifications
The nuts and bolts
- Model
- FLACC04
- Size
- 120 mm / 4.72 in
- Weight
- 14 g / 0.5 oz
- Materials
- 84% silicone, 16% plastic
- Phone compatibility
- 3.5–5 in / 9–13 cm screen diagonal
- Box contents
- One smartphone mount and four mounting O-rings
Specs checked with Deeper, Oct 2026.
Spot a model or spec change?
Our take
Buy it for easier viewing, not better sonar
The useful bit is having the display on the rod grip instead of juggling a phone while you retrieve. That could make a slow, deliberate look around the swim less of a faff.
It won't improve sonar readings or find a feeding spell for you. Its value is in making the screen easier to keep an eye on, provided your phone fits and the mounting position doesn't interfere with your hands.
The setup
Closer look: a simple holder, not another gadget
You're buying a physical mount that fastens a smartphone to the rod grip. There's no extra sonar function hiding here. The silicone retainers hold the handset's four corners, while the supplied mounting O-rings are part of the rod attachment setup. Four orange plastic hooks complete the holder's distinctive layout.
The appeal is keeping the display and rod together during a retrieve. That could be dead handy when you're following a depth change and don't want to keep shifting your attention to a phone laid somewhere else. Position matters, though: start with hand clearance and easy reel operation, then check your viewing angle.
Worth knowing. The 14 g figure is for the mount, not the mounted setup. Your phone adds its own weight and bulk, so don't judge how the rod will feel from that tiny number alone.
On the bank
Who it suits: smaller phones and purposeful scanning
This makes most sense if you already use a compatible smaller handset with your Deeper and regularly scan before settling on a spot. A dedicated scanning rod gives you somewhere to leave the holder without cluttering the grip of the rod you're using to fish. Check everything over before casting, including the casting suitability of the rod for your sonar.
It's less convincing if you only take the odd reading or prefer having the phone safely away from the rod. There's no need to buy an accessory just because it matches your sonar brand. If your existing viewing arrangement works and keeps the phone secure, this is a convenience purchase rather than essential kit.
Value depends on solving a real bit of faff. For a regular user with the right phone, that convenience could justify the spend. For someone whose handset is too large, the low weight and neat design don't rescue the fit. We haven't assumed a current selling price when making that judgement.
Before you buy
FAQs in full: phone fit, rod fit and box contents
Will your phone fit? The stated range is a 3.5–5-inch screen diagonal. That's the starting point, not permission to stretch it around a larger handset. Body shape and a fitted case can also affect how the corner retainers sit. If you're unsure, get confirmation for your exact phone-and-case combination before buying.
Will it fit your rod? Deeper describes the mount as suitable for any type of fishing rod, with attachment at the grip. In practical terms, check for a secure position that doesn't obstruct your reel or normal hand placement. Fit it over a safe surface first, rather than discovering an awkward setup with your phone hanging over the margins.
What's included? One smartphone mount and four mounting O-rings. You supply the phone and sonar. It's also important to treat it as a holder rather than phone protection: it doesn't enclose the handset against the weather, and we haven't verified its retention through casting or repeated bank use.
On paper
Pros & cons
What we like
- Keeps a compatible phone close to the rod while you're checking the sonar display.
- The mount itself weighs just 14 g.
- Four silicone retainers hold the phone at its corners.
- Mounting O-rings are included.
Worth knowing
- The stated 3.5–5-inch screen range excludes many current smartphones.
- Your phone adds bulk and weight around the rod grip, even though the mount is light.
- It's an exposed holder, not a protective phone enclosure.
Want one?
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Your questions answered
What anglers want to know
The stuff you’d ask your mate on the next peg. Straight answers, no waffle.
01Will it fit my smartphone?
Will it fit my smartphone?
Deeper states a compatible screen diagonal of 3.5–5 inches. Check your exact handset rather than assuming any smartphone will fit. Screen size doesn't tell you everything about body dimensions or a bulky case, either.
02Does it fit any fishing rod?
Does it fit any fishing rod?
Deeper describes it as fitting any type of fishing rod, fastening at the grip. You still need to check the chosen position leaves your reel, hands and controls clear.
03What comes in the box?
What comes in the box?
You get one smartphone mount and four mounting O-rings. The phone and Deeper sonar aren't included.
What anglers say
The word from the bank
Our read: a tidy idea with one big fit check. The strongest reasons to choose it are keeps a compatible phone close to the rod while you're checking the sonar display. and the mount itself weighs just 14 g.; the main trade-off is the stated 3.5–5-inch screen range excludes many current smartphones..
Our take on the feedback
Why it appeals
Checked Sept '26 — “Keeps a compatible phone close to the rod while you're checking the sonar display.”
Best fit
Checked Sept '26 — “Deeper users with a compatible smaller phone: It puts the display on the rod grip, where you can glance at it while retrieving the sonar.”
Worth knowing
Checked Sept '26 — “The stated 3.5–5-inch screen range excludes many current smartphones.”
Tackle Index’s take from the product details and fishing fit we checked. We haven’t found enough independent public feedback to call this an angler consensus yet.
Angler score
What our readers rate Deeper Smartphone Mount Phone Holder
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Owner reports
Own this? Help the next angler.
Quick multiple-choice reports from people who say they own the Deeper Smartphone Mount Phone Holder. Not verified purchases, and kept separate from our score.
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