boAt Airdopes Plus 311 VS boAt Airdopes Ultra Pro

Both the boAt Airdopes Plus 311 and the boAt Airdopes Ultra Pro share a nearly identical design foundation: true wireless, in-ear fit, no neckband, no wingtips, no RGB lighting, and an IPX4 ingress protection rating. For most users, this means both earbuds can handle light splashes and brief rain exposure without issue.

The one meaningful differentiator in this group is how each product communicates its water resistance. The Ultra Pro explicitly lists sweat resistant as a feature, while the Plus 311 lists water resistance as ″None″ despite sharing the same IPX4 rating. In practice, IPX4 covers splashes from any direction — which inherently includes sweat — so the Plus 311 is not more vulnerable; the labeling simply differs. That said, the Ultra Pro′s explicit sweat-resistant claim may offer greater peace of mind for workout-focused users.

Overall, the two earbuds are effectively tied on design. The shared IPX4 rating, form factor, and feature set leave little to differentiate them in this category. The Ultra Pro holds a marginal edge purely on clearer marketing around sweat resistance, which could matter to gym users, but the real-world protection level is comparable.

At their core, the Airdopes Plus 311 and the Airdopes Ultra Pro are acoustically very similar. Both rely on a 10 mm driver with an identical frequency range of 20 Hz to 20,000 Hz — the full span of human hearing — and both use passive noise reduction rather than active noise cancellation. Without ANC, neither earbud electronically suppresses ambient sound; they rely solely on the physical seal of the in-ear fit to block out the environment.

The single differentiator here is that the Ultra Pro supports spatial audio, while the Plus 311 does not. Spatial audio processing creates a sense of three-dimensional soundstage — making music, movies, or games feel more immersive and directionally layered rather than flat and centered in the head. It is a meaningful feature for content consumers who prioritize an enveloping listening experience, even if the underlying driver hardware is identical.

The Ultra Pro holds a clear edge in this category strictly because of spatial audio support. The shared driver size and frequency response mean raw sound reproduction is on equal footing, but the Ultra Pro′s ability to deliver a wider, more dimensional soundstage gives it a tangible advantage for users who value immersive audio.

Earbud battery life is identical across both models at 8 hours per charge, and both refill in a remarkably fast 0.5 hours. For daily commuters or casual listeners, this shared foundation is more than adequate. The real divergence, however, lies in the charging case.

The Airdopes Plus 311′s case extends total playtime to 42 hours, while the Airdopes Ultra Pro′s case delivers a substantially larger 92 hours of combined reserve — more than double. In practical terms, this means the Ultra Pro can go well over a week of typical daily use without ever needing to find a power outlet, making it a far more travel-friendly and low-maintenance option for heavy users or frequent travelers.

The Ultra Pro wins this category decisively. Neither product offers wireless charging, but that limitation applies equally to both. The massive gap in case battery capacity is the defining factor here — users who prioritize long intervals between charges will find the Ultra Pro significantly more convenient.

Connectivity is largely a wash between these two earbuds. Both run on Bluetooth 5.3, share an identical 10 m wireless range, charge via USB Type-C, and lack advanced codec support — no aptX, LDAC, or AAC on either side. This means audio is transmitted using the standard SBC codec by default, which is adequate for everyday listening but leaves audiophile-grade wireless fidelity on the table for both products equally.

The one concrete differentiator is audio latency. The Airdopes Plus 311 clocks in at 50 ms, while the Airdopes Ultra Pro registers a slightly higher 65 ms. In real-world use, latency under 100 ms is generally considered acceptable for video content, but the gap becomes more relevant for gaming or any scenario where precise audio-visual sync is critical. A 15 ms advantage for the Plus 311 is noticeable in sensitive use cases, even if casual listeners are unlikely to perceive it during music playback.

The Airdopes Plus 311 holds a narrow edge here, strictly on the basis of lower latency. For gamers or users who frequently watch video content and are sensitive to lip-sync drift, this difference is meaningful. For everyone else, the two earbuds are functionally equivalent on connectivity.

Across most practical features, these two earbuds are well-matched. Fast charging, mute, on-device controls, voice prompts, headset capability, and even an included travel bag are all present on both — a solid shared feature set for the price segment.

The single distinguishing feature in this group is in/on-ear detection, which the Airdopes Ultra Pro has and the Plus 311 lacks. This sensor automatically pauses playback when an earbud is removed and resumes when it is placed back in the ear — a small but genuinely useful quality-of-life feature that reduces the need to manually interact with the device during quick conversations or interruptions.

The Ultra Pro takes the edge in this category, solely on the strength of in-ear detection. It is not a transformative advantage, but it reflects a more refined user experience. For users who frequently take their earbuds in and out throughout the day, it is a meaningful convenience upgrade over the Plus 311.

Microphone performance is identical across both earbuds. Each is equipped with 4 microphones and noise-canceling mic technology — a configuration that enables beamforming, where multiple mics work together to isolate the speaker′s voice and suppress surrounding noise. For calls in busy environments, this is a meaningfully capable setup that goes beyond what basic single-mic designs can offer.

With no differentiators present in this group, the Airdopes Plus 311 and the Airdopes Ultra Pro are evenly matched on microphone specs. Users prioritizing call clarity can expect a comparable experience from either device.