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Oticon Opn S vs ReSound Key

Check out our comparison of the Oticon Opn S vs ReSound Key. See how the two hearing aids differ in terms of technology features, accessories, and more.

Oticon Opn S
RemoveOticon Opn S
Oticon Opn S
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ReSound Key
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ReSound Key
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Product Overview

Form Factor
RITE
RITE
User Rating
Hearing Loss Level
Suitable For
  • Mild
  • Moderate
  • Severe
Suitable For
  • Mild
  • Moderate
  • Severe
Product Family
Retail Price
$6,990
$3,966

Hardware Features

Bluetooth® Audio
Protocol
  • Made for iPhone (MFi)
Protocol
  • Made for iPhone (MFi)
  • Android (ASHA)
Disposable Batteries
Battery Size
312
Hands-Free Calling
Protocol
  • Accessory required
Protocol
  • Accessory required
IP Rating (Liquid)
8
8
IP Rating (Solid)
6
5
Made For iPhone
Lowest iOS Version
9.2
Lowest iOS Version
10
Push Button
Push Button Options
  • Program control
  • Volume Control
  • Mute control
Push Button Options
  • Program control
  • Volume Control
Rechargeable Batteries
Battery Type
Lithium-ion
Telecoil
Volume Rocker
Water Resistant Coating
Yes
Yes

Software Features

Adaptive Adjustments
Yes
Adjustment Bands
16
6
Adjustment Synchronization
Binaural Coordination
Synchronized push button
Synchronized volume control
Automatic Phone Program
AutoPhone
PhoneNow™
Bass Boost
Low Frequency Boost: Basic
Better Ear Focus
Binaural Noise Management
Directionality
Multiple Directionality Options
MultiScope Adaptive Directionality™
Natural Directionality™ II
SoftSwitching™
Synchronized SoftSwitching™
Ear Simulation
Pinna Omni
Environmental Adaptation
Yes
Environmental Classifier
Expansion
Yes
On/Off
Extended Dynamic Range
Clear Dynamics
Feedback Suppression
Feedback shield LX
OpenSound Optimizer™
Auto DFS™
DFS Ultra™ II
Music Mode™
Frequency Lowering
Speech Rescue™ LX
Listening Programs
4
Fully flexible programs: 4
Machine Noise Reduction
Yes
New User Adaptation
Adaptation Management
Synchronized Acceptance Manager
Noise Reduction
Maximum noise removal: 9 dB
NoiseTracker™ II: On/Off
Occlusion Reduction
Yes
Phone Ear Focus
Yes
Comfort Phone™
Power On Delay
Yes
SmartStart™
Preference Adaptation
YouMatic™ LX: 3 configurations
Processing Channels
64
Soft Speech Boost
Soft Speech Booster LX
Spatial Awareness
Spatial Sound™ LX: 4 estimators
Spatial Noise Cancellation
Balancing power effect: 100%
OpenSound Navigator™: Level 1
Stereo Audio Streaming
Stereo streaming (2.4 GHz)
Streaming Bass Boost
Bass Boost
Sudden Loud Noise Reduction
Transient Noise Management: 4 configurations
Impulse Noise Reduction: On/Off
Tinnitus Relief
Tinnitus SoundSupport™
Tinnitus Sound Generator
Unique Amplification Strategy
Speech Guard™ LX: Level 1
WARP compression: 12
Wind Noise Reduction
Wind Noise Management
Wind Guard: On/Off

Accessories

3.5mm Line to Streaming
  • Multi Mic
Battery Charger
  • Charger
Bluetooth Streamer
  • ConnectClip
  • Unite Phone Clip+
CROS System
  • CROS
  • CROS PX
FM to Digital Streaming
  • Multi Mic
Landline to Streaming
  • Phone Adapter 2.0
Remote Adjustments
  • Companion App
  • ReSound Smart 3D app
Remote Control
  • Remote Control 3.0
  • ConnectClip
  • Companion App
  • Unite Remote Control 2
  • Unite Phone Clip+
  • ReSound Smart 3D app
  • ReSound Smart 3D app [Watch]
  • Control+
Remote Microphone
  • ConnectClip
  • Multi Mic
  • Micro Mic
Smartphone App
  • On App
  • Companion App
  • ReSound Smart 3D app
  • Control+
Smartphone Streamer + Hands Free
  • ConnectClip
  • Unite Phone Clip+
Smartwatch App
  • ReSound Smart 3D app [Watch]
TV Streamer
  • TV Adapter 3.0
  • Unite TV Streamer 2
Telecoil Streamer
  • Multi Mic