Inside the CNET Lab Phone Charging Speed Test
CNET Lab put 33 smartphones through a rigorous phone charging speed test to see which models truly deliver the fastest charging phones. The lineup spanned major brands including Apple, Samsung, Google and Motorola, plus several internationally sold devices often praised for extreme quick-charge systems. Each phone was drained to 10% or less before testing. For wired charging, CNET used the in-box cable and a wall adapter matched to or exceeding the phone’s rated wattage, then measured how much battery percentage each device regained in 30 minutes. Wireless tests followed the same 30-minute window, using Qi, Qi2 or Qi2.2 chargers aligned with each phone’s maximum wireless speed. To make a fair quick charge comparison across brands and technologies, CNET averaged the wired and wireless results into a single overall charging score, revealing some surprising winners and exposing how far apart different manufacturers really are on fast charging.
Overall Fastest Charging Phones: Why the iPhone 17 Pro Tops the List
Based on CNET’s combined wired and wireless metrics, Apple’s iPhone 17 Pro emerged as the overall fastest charging phone in the lab. That doesn’t mean it posts the highest raw wattage, but rather that it reaches a high percentage of charge in the shortest time across both plug-in and wireless scenarios. A key factor is its 4,252mAh battery, smaller than the 5,000mAh-class packs common in rival flagships, so it simply takes less time to refill. The phone supports robust wired charging and MagSafe wireless charging using the Qi2 standard, enabling consistently strong results in both test tracks. CNET’s findings also underline an important nuance for shoppers comparing the best fast chargers: capacity, software efficiency and thermal management all influence how quickly a phone can safely absorb power. The iPhone 17 Pro’s balance of battery size and charging tech propelled it to the top of the lab’s overall rankings.
Samsung’s Galaxy S26 Ultra and the Rise of High-Watt Wired Charging
If you care most about wired speed alone, Samsung’s Galaxy S26 Ultra claimed the crown for fastest charging phones in CNET’s lab, thanks to its new 60-watt charging ceiling. That figure surpasses the 25-watt support found on the more affordable Galaxy A17 and even on Samsung’s own Galaxy S26, highlighting how premium models can differentiate through faster wired top-ups. CNET’s 30-minute test shows just how much advantage a higher wattage can provide, especially when paired with efficient power management and modern battery chemistry. Some devices now use split-cell designs or silicon-carbon batteries to safely accept higher currents, further boosting their wired performance. Still, CNET’s results make clear that headline wattage doesn’t always equal real-world speed. Larger capacity batteries can blunt the advantage of higher wattage, while thermal throttling and conservative charging curves may slow down a phone long before it reaches 100%.
Chinese Brands Push Extreme Fast Charging Further Than Western Flagships
When you broaden the quick charge comparison to international phones, the gap between Chinese-designed handsets and mainstream Western flagships becomes stark. Devices like the OnePlus 15 support up to 100W wired charging and 50W wireless charging in their scaled-back configurations, with some variants capable of up to 120W wired speeds. Despite packing a massive 7,300mAh battery, OnePlus claims this allows the phone to go from 0 to 50% in about 20 minutes and reach a full charge in under an hour. Other brands such as Huawei, Oppo, Honor and Xiaomi offer similarly aggressive charging solutions. Many of these rely on advanced split-battery setups and proprietary chargers, sometimes paired with silicon-carbon cells. CNET’s lab notes that while these phones often outpace Apple, Samsung, Google and Motorola in raw recharge times, their most extreme charging modes are typically limited to specific ecosystems and accessories, and are not always widely available in every market.
Why Some Premium Phones Still Charge Slower Than Cheaper Rivals
The lab results highlight a counterintuitive trend: some high-end phones from Apple and Samsung charge slower than cheaper or lesser-known competitors, even though they command premium status. In part, this stems from cautious design philosophies in their core markets, where longevity, safety and ecosystem stability often trump headline-grabbing wattage numbers. Larger batteries can extend daily endurance but naturally require more time to refill. Conservative charging curves, tighter thermal limits and strict adherence to open standards like Qi also cap peak speeds. Meanwhile, midrange phones such as Samsung’s Galaxy A17 already match the 25-watt charging level of pricier Galaxy S26 models, proving that phone charging speed isn’t strictly tied to price. For buyers, the takeaway is clear: if fast refills are a priority, you can’t assume a flagship is automatically the fastest charging phone. Checking independent lab tests and real-world timing remains essential before choosing your next device and charger.