We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-02 · 6 min read · Independent comparison
If you want the earbuds with the more detailed spec sheet and a broader set of listed features, choose FK Trading Motorola Razr 40; if you need the model that lists active noise cancellation and simpler, more focused specs, choose SGNICS Earbuds. Both are IPX6 waterproof sport earbuds with ear hooks, Bluetooth 5.3 and a 500mAh case, so the real decision comes down to small differences in the details.
• FK Trading Motorola Razr 40 — biggest strength: A fuller, more detailed spec listing: Bluetooth 5.3, four microphones, environmental noise cancellation, 9 hours per charge, 48 hours with the case, USB-C, IPX6, 10-meter Bluetooth range, touch controls and a 500mAh case.
• FK Trading Motorola Razr 40 — biggest trade-off: It ships with S/M/L silicone tips and a hook design that some ears find fussy to seat correctly at first.
• SGNICS Earbuds — biggest strength: Same core formula in a leaner package: Bluetooth 5.3, ear hooks, IPX6, 9 hours per charge, 48 hours with the case, USB-C, plus listed active noise cancellation.
• SGNICS Earbuds — biggest trade-off: Its spec sheet is thinner — fewer listed details on microphone count, Bluetooth range and controls.
• Who each pick is for: The FK Trading set is for buyers who want every spec spelled out before they commit; the SGNICS set is for buyers who want active noise cancellation named directly and prefer a simpler, sport-first design.
The FK Trading Motorola Razr 40 (model X13) is built around a single idea: stay put while you move. The soft, flexible ear hooks curve over the ear instead of relying on a friction fit inside the canal, which is exactly what you want during running, gym work, or anything where you're bouncing around. Three sizes of silicone tips are included, so you can dial in the seal rather than accept whatever the box gives you. On paper, that combination is what keeps sound in and sweat out.
Under the hood it runs Bluetooth 5.3, which the spec sheet ties to a more stable connection, faster transmission and a stronger signal, with a listed wireless range of 10 meters. Four microphones paired with environmental noise cancellation are listed for calls — a useful detail if you take meetings or phone calls mid-session. Battery is listed at 9 hours of playback per charge, with the 500mAh case extending that to 48 hours total, and USB-C charging that refills the case in about 1.5 hours. IPX6 means it's protected against sweat and rain, not full submersion, so rinse it under a tap at your own risk.
Controls are touch-based for media, and the package includes the cable, ear cushions, tips and a manual. It's listed as compatible with iPhone, Android, Samsung Galaxy, iPad Pro and other Bluetooth devices. Who should buy it: anyone who wants the most documented feature set in this comparison and wants to know exactly what they're getting before ordering. Who should skip it: if you specifically want active noise cancellation named in the spec list, this one lists environmental noise cancellation for calls rather than ANC. In my opinion, this is the better pick for the buyer who reads specs carefully and wants a headset that doubles as a workout tool and a call device.
The SGNICS Earbuds (also listed as an X13 Earbuds model) cover the same ground with fewer words. Bluetooth 5.3, ear hooks, IPX6, 9 hours per charge, 48 hours with the 500mAh case, USB-C charging in about 1.5 hours, and a 4-microphone setup with environmental noise cancellation for calls. The shell is black and made from ABS and PC, and the box includes the cable, charging case, ear cushions and S/M/L tips.
The one clear spec difference: SGNICS lists active noise cancellation under its controls section, while FK Trading lists environmental noise cancellation. Those are not the same thing. ANC actively reduces continuous low-frequency sound around you, while environmental noise cancellation is typically about cleaning up your voice on calls. If you want the earbuds to quiet a gym or a plane rather than just make your voice clearer, that naming matters. The trade-off is that SGNICS gives you less information elsewhere — no listed microphone count, no Bluetooth range figure, no control method spelled out. You're buying a leaner spec sheet.
Who should buy it: shoppers who specifically want ANC listed and don't need every parameter documented. Who should skip it: buyers who want the fullest possible spec disclosure before spending, or who value knowing the exact Bluetooth range and control type. In my opinion, this is the pick for someone who cares about noise reduction first and spec minutiae second.
Side-by-Side: Which Should You Choose?
• Best for call clarity detail → FK Trading Motorola Razr 40. It explicitly lists four microphones with environmental noise cancellation.
• Best for active noise cancellation → SGNICS Earbuds. ANC is named directly in its controls spec.
• Best for battery life → a tie. Both list 9 hours per charge and 48 hours total with the 500mAh case, with the same 1.5-hour USB-C case charge.
• Best for waterproofing → a tie. Both are rated IPX6, which covers sweat and rain but not swimming or full submersion.
• Best for documented specs → FK Trading Motorola Razr 40. Bluetooth range, control type, driver type and materials are all listed; SGNICS leaves more blank.
• Best for device pairing confidence → FK Trading Motorola Razr 40. It names iPhone, Android, Samsung Galaxy, iPad Pro and other Bluetooth devices directly.
• Best for simplicity → SGNICS Earbuds. Fewer moving parts to think about, one clear headline feature.
I would buy the FK Trading Motorola Razr 40. In my opinion, the fuller spec sheet — four microphones, 10-meter range, named Bluetooth 5.3, touch controls, a dynamic driver and listed device compatibility — gives a buyer more to evaluate before ordering, and the ear-hook plus S/M/L tip design is the right foundation for IPX6 sport use. The SGNICS Earbuds are a legitimate alternative if active noise cancellation is your priority, and both share the same 9/48-hour battery and IPX6 rating. But when two products are this close on the fundamentals, I lean toward the one that tells me more about what I'm getting. Check the current price on Amazon before you commit — the button on this page will show you where each stands.
FAQ
It carries an IPX6 rating, which means it's protected from sweat and rain during workouts and daily use. It is not designed for swimming or being submerged in water.
Yes — its controls section lists active noise cancellation. Keep in mind that's a different function from the environmental noise cancellation both models use for cleaning up call audio.
Both list 9 hours of playback per charge, with the 500mAh case extending total playtime to 48 hours. The case itself recharges in about 1.5 hours via USB-C.
Both are built for it — ear hooks, S/M/L tips and IPX6 protection on each. If you want the more detailed spec sheet, go FK Trading; if you want ANC named directly, go SGNICS.
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