We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-19 · 7 min read · Independent comparison
If you want the longest wireless leash, the strictest call security and a headset built for shared, high-density office floors, choose Hewlett Poly Savi 7310; if you need a headset that hops between DECT and Bluetooth and runs for days between charges, choose Yealink WH64.
• Hewlett Poly Savi 7310 — biggest strength: DECT-only design with 128-bit authentication and 256-bit AES encryption, plus a 449.5 ft wireless range and a mono over-the-ear fit tuned for private, focused calls.
• Hewlett Poly Savi 7310 — biggest trade-off: No Bluetooth. It lives and dies by its DECT adapter, so phone-first or mobile-first workflows aren't its lane.
• Yealink WH64 — biggest strength: DECT and Bluetooth in one headset, with a 606 ft DECT range and a 26-hour mono talk time that comfortably outlasts a long workday.
• Yealink WH64 — biggest trade-off: Its mono version gives you one ear only, so if you want stereo music listening you're looking at the dual variant, not this one.
• Who the Savi 7310 is for: People in finance, medical, government or contact-center seats where conversation privacy and dense headset deployments matter most.
• Who the WH64 is for: Hybrid workers who want one headset for a desk phone, PC and mobile phone, and who hate charging cables.
The Savi 7310 is a monaural DECT headset with a 20 Hz to 20 kHz frequency range and a dynamic driver, so it's built to reproduce the full spectrum of speech rather than just the middle of it. That matters more than it sounds. In a job where you're on calls six hours a day, voices that sound natural are easier to listen to for long stretches than voices that sound thin. The single over-the-head ear cup keeps one ear open to the room, which is exactly what you want if a colleague might tap you on the shoulder or if you need to hear a doorbell, a nurse's station or a trading floor.
The security story is the real differentiator here. Poly pairs secure DECT with 128-bit authentication and 256-bit AES encryption, and the description frames the Savi 7300 series as suitable for financial, medical, government and contact-center environments. The 449.5 ft operating distance is generous for an office — you can walk to a printer bank, a supply closet or a colleague's desk and stay on the call. Poly also claims up to 2x better density than other DECT headsets, which is the spec that matters to IT: more headsets can be deployed in the same shared space without the wireless interference that turns a busy floor into a crackle fest.
Yealink WH64: Who It's For
The WH64's headline trick is that it speaks two wireless languages. DECT handles the long-range, secure, high-density side of the job, while Bluetooth covers the mobility side — so the same headset can serve your PC over the USB link, a compatible desk phone over USB, and your mobile phone over Bluetooth. That's three devices, one headset, and no juggling. If you've ever missed a call because your headset was paired to the wrong thing, you understand why that matters.
Battery is the other standout. Yealink rates the mono version at 26 hours of talk time, 48 hours of music time and 157 hours of standby, with a 1.5-hour charge time from the base — which doubles as a signal base, function button and charging stand. In practice that means you can leave the charging cradle at the office, take the headset home, and still not think about a charger for days. The 606 ft DECT range is the longest figure in this comparison, and the base's design is tidier than a separate dongle-plus-stand setup.
On audio, Yealink lists a 3x noise-cancelling mic array with Acoustic Shield technology and 6x audio equalizers. The EQ options are the underrated bit: you can shape the sound rather than accept a single house tuning. Teams gets a one-click conference function, plus a busylight so people around you know you're on a call, and there's a dedicated mute button. The box includes two USB-to-USB-A cables, an adapter, the DECT base, a drawstring bag and a quick start guide.
Buy it if you want one headset across PC, desk phone and mobile, you value long battery life above all, or you want Bluetooth freedom to step away from the base. Skip it if you need stereo audio — that's the dual-ear model — or if your priority is the tightest possible security spec sheet rather than device flexibility.
• Best for wireless range → Yealink WH64, at 606 ft versus the Savi 7310's 449.5 ft. Both are far beyond a normal office footprint, but Yealink wins on paper.
• Best for call security and privacy → Hewlett Poly Savi 7310, with 128-bit authentication and 256-bit AES encryption called out explicitly.
• Best for multi-device flexibility → Yealink WH64, because DECT plus Bluetooth covers desk phone, PC and mobile in one headset.
• Best for dense, shared office deployments → Hewlett Poly Savi 7310, which is pitched around up to 2x better DECT density for crowded floors.
• Best for battery life → Yealink WH64, with 26 hours of mono talk time against a headset that doesn't publish a comparable talk-time figure.
• Best for focused, one-ear listening with an open ear to the room → either, since both are mono designs — the Savi 7310 over-ear, the WH64 on-ear with a leather enclosure.
• Best for a tidy travel setup → Hewlett Poly Savi 7310, which ships with a charging stand, travel case and USB-C adapter in the box.
• Best for Teams-centric workflow → Hewlett Poly Savi 7310 if you want a headset certified for Microsoft Teams specifically; the WH64 is also Teams-certified and adds one-click conference plus a busylight.
If I were buying for myself, I'd pick the Yealink WH64. In my opinion, the DECT-plus-Bluetooth combination is the more useful feature in 2026, because most of us are not sitting at one desk all day — we're moving between a laptop, a desk phone and a mobile phone, and the WH64 follows us across all three. The 26-hour mono talk time and the 606 ft range mean I'd rarely think about charging or range limits.
That said, the Hewlett Poly Savi 7310 is the headset I'd recommend without hesitation to anyone in finance, healthcare, government or a contact center, where the security spec and DECT density claims are the whole point of the purchase. If your calls are confidential by nature, that's the one to take. For everyone else, the WH64 is the more versatile daily driver.
Whichever way you lean, check the current price on Amazon before you commit — both sit in a similar professional-tier bracket, and the gap between them shifts.
For most home setups, yes — in my opinion. The WH64's Bluetooth lets you pair a personal phone alongside your PC, and its 26-hour mono talk time means you're not tethered to a charger. The Savi 7310 is DECT-only and better suited to a fixed desk with a PC.
No. Its data sheet lists DECT as the only wireless technology. That's a deliberate design choice aimed at secure, interference-free, high-density office deployments rather than mobile-device hopping.
The Yealink WH64, at up to 606 ft on DECT, versus 449.5 ft for the Hewlett Poly Savi 7310. Both are far more than a typical office or home needs.
The Yealink WH64 explicitly supports desk phone connection over USB, with a published compatibility list and optional EHS cables for other models. The Savi 7310's kit is built around PC connection via its D400 USB-A DECT adapter, so check your phone setup if desk phone use is essential.
The Hewlett Poly Savi 7310, based on the specs — it lists 128-bit authentication and 256-bit AES encryption and is positioned for financial, medical and government environments.
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