Fast Wireless vs. Qi & Qi2
Comparing 2 standards across 13 specifications. 13 key differences identified.
Proprietary Fast Wireless Charging refers to high-power, customized inductive charging ecosystems developed by smartphone manufacturers (including Oppo/OnePlus AirVOOC, Xiaomi HyperCharge, and Honor SuperCharge). Operating at power tiers from 50W to 100W, they utilize high-voltage resonant pump circuits, active thermoelectric cooling, and dual-cell battery architectures to bypass standard 15W Qi limitations.
Qi (pronounced 'chee') is the global open standard for inductive wireless power transfer developed by the Wireless Power Consortium (WPC). Operating at 110–205 kHz, it encompasses Baseline Power Profile (BPP, 5W), Extended Power Profile (EPP, 15W), and Qi2 Magnetic Power Profile (MPP, 15W) with ring-magnet alignment.
Specification Comparison Table
13 Parameters| Parameter / Spec | ||
|---|---|---|
|
Peak Power Delivery Tiers
|
50W, 80W, 100W (subject to regional RF regulatory caps) | — |
|
Regulatory RF Power Limit
|
Historically capped near 50W under China's MIIT radio regulations, reportedly relaxed to around 80W in a 2024 revision -- regional regulatory limits are a moving target and worth confirming against the current rule text | — |
|
Operating Resonant Frequencies
|
110 kHz to 148.5 kHz / specialized high-frequency bands | — |
|
Cooling Architecture
|
Active brushless cooling fan + internal Peltier thermoelectric elements | — |
|
Battery Cell Design
|
Dual-cell series (2S) battery topology (e.g. 2x 2,500 mAh cells charging at 10V/20V) | — |
|
Fallback Protocol
|
Falls back to standard WPC Qi (5W–15W) when charging third-party devices | — |
|
Governing Body
|
— | Wireless Power Consortium (WPC) |
|
Specification Versions
|
— | Qi v1.0 (2010), Qi v1.2/v1.3 (EPP), Qi v2.0 (Qi2 MPP, 2023) |
|
Operating Frequency Range
|
— | 110 kHz to 205 kHz (Inductive magnetic coupling) |
|
Power Profiles
|
— | BPP (Baseline: 5W), EPP (Extended: 15W), MPP (Magnetic: 15W), Ki Cordless (up to 2.2 kW for kitchen appliances) |
|
Power Transmission Physics
|
— | Near-field electromagnetic induction via planar copper wire coils |
|
Communications Channel
|
— | In-band digital backscatter modulation (2 kbps ASK packets modulated onto power carrier) |
|
Safety Protections
|
— | Foreign Object Detection (FOD), thermal throttling, over-voltage/current clamping |