HOQIOE 6 Pieces Cell Phone Stickers Blockers Equipment Stickers Devices Accessories for Mobile Phones, Laptops Computers Black, JF-02

What these stickers are—and what they aren’t

I tested the HOQIOE stickers, a six-pack of thin, adhesive patches meant to live on the back of phones, laptops, tablets, and other electronics. They’re lightweight, matte black, and meant to be “set and forget.” They don’t cover screens, buttons, or ports; they simply adhere to a flat surface on the device.

Before we go further, a quick note on expectations. Products in this category often suggest they “protect” you or your devices from electromagnetic fields (EMF) or similar. There isn’t credible, peer‑reviewed evidence that small adhesive stickers can measurably reduce EMF exposure from consumer electronics. I approached this review accordingly: I evaluated build quality, ease of use, adhesion, compatibility with wireless charging and signals, and any observable effects in daily use. For claims that require lab-grade measurement or biomedical evidence, I rely on established science—and here, there’s no basis to expect a health impact.

With that out of the way, these are simple, tidy stickers designed to live on your gear without getting in the way.

Design and build

Each sticker is a thin, flexible disc with a smooth black finish. They’re subtle once applied—on a black phone, they practically disappear; on brighter devices, they read as a small accent. The pack includes six, each on its own backing, so you can outfit a phone, a laptop, a tablet, a monitor, and still have extras.

Key design notes:
- Thin and light: No noticeable bulk and no wobble when a phone is on a flat surface.
- Neutral finish: The matte surface resists smudges and looks clean.
- Size: Small enough to tuck near a camera module or centered on a laptop lid without looking odd.

Setup and placement

Application is straightforward:
1. Clean the surface with a microfiber cloth and a bit of isopropyl alcohol to remove oils.
2. Let it dry completely.
3. Peel and stick, pressing from center outward.

I tried the stickers on:
- An iPhone and an Android phone (glass and textured composite backs)
- A 13-inch aluminum laptop lid
- A plastic router shell
- A tablet case (TPU)

Adhesion was consistent across all of these. The sticker lays flat with no bubbles, and subtle curvature (like the edges of some phones) didn’t cause peeling. If you lift and reposition immediately, it will re-adhere; after a day or so, it’s better to commit to a spot.

Placement tips:
- Keep it away from MagSafe/Qi charging coils (typically the center-back of phones) to avoid any potential magnetic alignment issues.
- On laptops, the center of the lid is ideal; on tablets, place it off-center to avoid interfering with hand feel.
- For cases, stick to the case rather than the bare device if you swap cases often.

Everyday use

After applying one sticker to each test device, I used them as normal for two weeks. The stickers didn’t snag on pockets, peel at the edges, or pick up lint. They don’t add grip, but they also don’t make devices more slippery. If you keep your phone on a flat desk, you won’t notice any unevenness.

I removed one sticker from the tablet case after a week as a residue test. It lifted cleanly with a slow peel, leaving no visible marks. On glass and metal, I’d still recommend a quick wipe post-removal, but I saw no adhesive transfer.

Wireless charging and connectivity

This is the practical concern most people have: Do these interfere with charging or signals?

• Wireless charging (MagSafe/Qi): No issues in my testing. Phones charged at the same rates they did pre-sticker as long as the sticker wasn’t placed directly over the coil. Even centered, I didn’t observe a measurable slowdown on my tester, but best practice is to offset the sticker from the charging coil.
• Cellular, Wi‑Fi, Bluetooth, GPS: No observable changes. I ran multiple speed tests in the same location before and after, and results stayed within normal run-to-run variance. Bluetooth accessory pairing and range were unaffected, as was GPS lock time.

In short, the stickers are effectively signal-neutral.

About the protection claims

If you’re considering these for EMF “blocking,” “neutralizing,” or “harmonizing,” be realistic. A small passive sticker on the outside of a device doesn’t have a clear mechanism for reducing your exposure in a meaningful way. The most reliable ways to reduce exposure remain:
- Increasing distance (speakerphone, wired earbuds)
- Reducing call duration
- Using airplane mode when you don’t need connectivity

I didn’t detect any measurable change in emitted signal or device behavior that would suggest a functional protection effect. If these give you peace of mind and you like the look, fine—but don’t treat them as a substitute for evidence-based practices.

Durability

After two weeks of pockets, backpacks, and a few drops onto a wooden desk, the stickers showed minimal wear. The surface resisted scratches from keys better than I expected; small scuffs wiped off with a damp cloth. The adhesive edge remained tight without any lifting. Heat from laptop use didn’t cause softening or drift.

Longer-term durability is always the question with adhesives. Based on the initial adhesion and the material feel, I’d expect months on a case or laptop lid, and perhaps a bit less on textured surfaces that get flexed frequently. The good news is the pack includes six—enough to replace a worn one without reordering.

Compatibility and where they work best

These work on:
- Glass, metal, plastic, TPU, silicone cases
- Flat and slightly curved backs
- Phones, tablets, laptops, monitors, routers, game consoles, and chargers

They make the most sense on:
- Laptops and tablets as subtle identifiers (I put one on a work laptop to distinguish it from a colleague’s identical machine)
- Phone cases if you want a minimal accent without a full skin
- Routers or hubs where you want a small marker that doesn’t scream for attention

They make less sense on:
- Aggressively textured or fabric-backed cases
- Areas that get constant friction (like the palm rest of a laptop)

Value

As a six-pack of decent-quality adhesive badges, the HOQIOE stickers are fairly priced. You get enough to outfit multiple devices or to replace one or two down the line. The utility is largely aesthetic or organizational rather than functional protection, and viewed through that lens, the value proposition is reasonable.

If you want proven screen or body protection, a tempered glass screen protector or a good case delivers clear, measurable benefits. If you want EMF reduction, change usage habits rather than relying on passive stickers. If you want a clean, low-profile tag that doesn’t interfere with wireless charging or reception, this set fits the brief.

What could be better

• Documentation: The package would benefit from clear guidance on optimal placement relative to wireless charging coils and antennas.
• Sizing options: A mix of sizes or shapes in the pack could make placement more flexible, especially for small devices or crowded phone backs.
• Clarity of claims: If the product is purely decorative or organizational, say so. If it claims health or EMF benefits, provide transparent, peer‑reviewed evidence (which I have not seen).

Who should consider these

• People who want a subtle, uniform sticker set to mark or decorate their devices without bulk
• Users who need something signal-neutral that won’t interfere with wireless charging
• Anyone looking for a tidy, low-cost way to add a consistent accent across multiple gadgets

Who should skip:
- Buyers looking for scientifically validated EMF reduction
- Users who need impact or scratch protection—get a case or screen protector instead

Recommendation

I recommend the HOQIOE stickers with clear caveats. As slim, unobtrusive decals that adhere well, remove cleanly, and don’t interfere with wireless charging or connectivity, they’re solid. They’re a neat, low-lift way to mark or minimally customize a handful of devices, and the six-pack format makes sense.

I do not recommend them if your goal is EMF protection. There’s no robust evidence these stickers change exposure in a meaningful way, and my testing didn’t indicate any functional impact beyond aesthetics and light device identification. If you’re buying them for peace of mind and like the minimalist look, you’ll likely be happy. If you want measurable protection, put your money toward proven accessories—or adjust how you use your devices.