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Is your Apple Watch battery old and needs replacing? You can determine this without taking off your watch.

One of the best features of the iPhone in recent years has arguably been its optimized  Apple Watch Battery charging.

First introduced a year ago with iOS 13, the “Optimize Battery Charging” feature aimed to reduce battery degradation and thus extend Apple Watch watchOS 7 Battery life.

This feature limited the time your iPhone remained fully charged by pausing the charging process when it reached 80%, then used on-device machine learning to learn your daily charging habits and determine when to add the remaining 20% ​​so your iPhone was ready when you woke up.

Apple subsequently added the same feature to macOS Catalina 10.15.5. Based on my testing, this feature does indeed reduce battery wear, and machine learning quickly learns your habits, allowing it to run in the background without disrupting your schedule when things change. You can check if you have this feature and if it’s turned on by doing the following on your Apple Watch:

Settings > Apple Watch Battery > Battery Health

Optimized Charging is designed to only turn on when you’re where you spend most of your time, such as at home and the office, to charge your Apple Watch battery. It’s smart enough to automatically turn off when you change these routines, such as when you’re traveling.

For Optimized Charging to work properly, you must enable the following settings on your Apple Watch (which are enabled by default):

Settings > Privacy > Location Services > Location Services

Settings > Privacy > Location Services > System Services > System Customization

Settings > Privacy > Location Services > System Services > Significant Locations > Significant LocationsApple Watch watchOS 7 Battery

All set up, but how does this information help you determine if your Apple Watch battery is aging? Go back to Settings > Battery > Battery Health. You’ll see a “Maximum Capacity” value. If it’s above 80%, the battery is in good condition. Below 80%, there may be a problem with the battery, and you’ll also notice thatApple Watch watchOS 7 Batteryhas less battery life than before.You don’t need to take your watch off your wrist to do this!


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Samsung Galaxy S22 Ultra Review: The Best Android Phone You Can Buy

Samsung Galaxy S22 Ultra Smartphone BatteryCapacity: 5000 mAh (same as the subsequent S23 Ultra)

Charging Methods:

Wired Charging: Supports up to 45W fast charging (charger not included in box).

Wireless Charging: Supports up to 15W Fast Wireless Charging 2.0.

Reverse Wireless Charging: 4.5W (wireless reverse charging, can charge headphones, watches, etc.).

Actual Battery LifeSamsung Galaxy S22 Ultra Smartphone Battery Life and Performance

Actual battery life will vary depending on various factors. Here is a general overview:

1. Typical User (Social Media, Web Browsing, Email, Calls)

A single charge is sufficient for a full day’s use. Typically, in a 16-18 hour day, screen-on time (SOT) is 4-6 hours, plus standby time.

2. Advanced Users (Gaming, Heavy Camera Use, Video Streaming)

Samsung Galaxy S22 Ultra Battery

Battery life will be shorter. Prolonged gaming or 4K video recording will drain the battery faster, potentially requiring an afternoon charge to last until evening. Under heavy, continuous use, screen-on time may only be 3-5 hours.

Important Note: Although the 5000mAhSamsung Galaxy S22 Ultra Smartphone Batteryhas a large capacity, its battery life isn’t always superior to some competitors due to power-hungry components such as the high refresh rate screen and flagship chipset.Tips to Improve S22 Ultra Battery Life

If you find the battery life unsatisfactory, the following settings can significantly improve it:

Use Dark Mode: The S22 Ultra features a Dynamic AMOLED 2X display. In Dark Mode, black pixels are turned off, significantly saving power, especially in high-brightness conditions.

Optimize refresh rate: Go to Settings > Display > Dynamic Smoothness and select Standard (60Hz) instead of Adaptive (120Hz). This is one of the most effective power-saving methods, but it will sacrifice some smooth scrolling.

Enable power saving mode:

Lightweight performance mode: Go to Settings > Battery > Power Mode and select Lightweight for a good balance between performance and battery life.

Final conclusion:Samsung Galaxy S22 Ultra Smartphone Battery life is good, but not outstanding. It’s perfectly adequate for most users’ all-day use, but may be slightly insufficient for heavy users and those with highSamsung Galaxy S22 Ultra Smartphone Batterylife requirements.

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DeepSeek launches V3 AI model update to compete with OpenAI. What’s new?

DeepSeek’s AI has sparked a debate about whether cutting-edge platforms can be built for far less than the billions of dollars invested by US companies to build data centers. Chinese AI startup DeepSeek has released an update to its V3 model that promises better programming capabilities.
The V3-0324 update, which was initially announced on Hugging Face this week but has not yet been officially released, claims to address real-world challenges while setting benchmarks for accuracy and efficiency. V3 is actually an older DeepSeek platform, and DeepSeek claims to have significant improvements in benchmark performance across multiple metrics.
It also claims to have improved the style and content quality of Chinese writing features, improved multi-round interactive rewrites, optimized translation quality and letter writing, enhanced reporting analysis requests and output more detailed output, and improved the accuracy of function calls, fixing issues in previous V3 versions.
The startup’s AI service has sparked a debate about whether cutting-edge platforms can be built for far less than the billions of dollars invested by US companies to build data centers. It also highlights the company’s intention to stay ahead of its competitors, especially those from Silicon Valley, such as OpenAI and Google.
Previously, DeepSeek surpassed OpenAI’s ChatGPT to become the most popular free app in Apple’s US App Store.
DeepSeek’s achievements also include the performance of the initial R1 model, which seems to be on par with OpenAI’s best model, but at a fraction of the cost. The cost part was particularly shocking to the industry and triggered a sell-off in  AI and technology-related stocks in the US market. This is because the best companies in Silicon Valley have invested huge amounts of money in their artificial intelligence projects, but have only achieved similar results


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Oppo Find X9 Pro Review

The 6.78-inch OLED display remains unchanged and is still excellent.

The Find X9 Pro features a 6.78-inch LTPO OLED display with a resolution of 1272×2772 pixels—oddly, it’s 8 pixels wider and 8 pixels shorter than the Find X8 Pro’s screen.Oppo Find X9 Pro smartphone Battery Life

The Find X9 Pro uses a large 7500mAh silicon-carbon battery, one of the major upgrades compared to its predecessor.Oppo states that the Find X9 Pro’s brightness should be 800 nits when manually adjusted, and can reach 1800 nits in bright light (screen fully lit).

Our experience with high frame rate gaming on Oppo phones didn’t change on the Find X9 Pro—all the games we tried were limited to 60Hz/60fps.

Therefore, it’s no surprise that theOppo Find X9 Pro smartphone Battery life is outstanding, achieving a record-breaking 21 hours and 57 minutes of active use. In fact, its performance would have been even higher if not for its mediocre talk time—all screen-on tests yielded excellent results.

The Oppo Find X9 Pro’s battery system is one of its core selling points. It successfully combines a large capacity (5100mAh), ultra-fast wired charging (100W), and practical wireless charging (50W), providing a top-tier “anxiety-free” battery life experience in the current smartphone market. If you highly value Oppo Find X9 Pro/smartphone Battery life and charging speed, the Find X9 Pro is definitely one of the most worthwhile models to consider on the market right now.

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Samsung Galaxy Tab S11 Ultra Review: Say Goodbye to Tablets, Welcome the Laptop Era

This tablet is faster than its predecessor,and has longer battery life, but in both aspects it still can’t match the Apple iPad Pro M4. Galaxy Tab S11 Ultra Battery life is a significant improvement over the previous generation. In our tests, the Samsung

Galaxy Tab S11 Ultra achieved a battery life of 17 hours and 10 minutes—while this figure is not as good as the M4 iPad Pro’s 18 hours and 13 minutes, it’s very close. I found it perfectly adequate for a full day of work without any problems.

Personally, I found the Tab S11 Ultra to be very smooth to use. Especially noteworthy is the extremely fast app launch speed and incredibly responsive multitasking. During my time using the Tab S11 Ultra, I never felt it was running slowly, nor did I ever feel that my actions exceeded its capabilities.High-quality Galaxy Tab S11 Ultra BatteryCharging Speed: 45W Fast Charging (supports up to 65W or higher PPS)

The S11 Ultra comes with an 11,200 mAh battery, expected to offer excellent battery life, but actual performance will largely depend on your usage, the energy efficiency of the new chipset, and the screen refresh rate.

Video Playback: Approximately 14-16 hours.

This is a rough estimate based on the S9 Ultra’s performance. Playing videos over Wi-Fi at 50% screen brightness should easily last a full day or longer.

Daily Use (Web Browsing, Email, Social Media): Screen-On Time (SOT) 10-12 hours.

Mixed use at the 120Hz adaptive refresh rate is sufficient for a full day of heavy use.

Gaming and Intensive Tasks: 5-8 hours.

Running demanding games or video editing will drain the Galaxy Tab S11 Ultra Battery faster due to high CPU/GPU load and screen brightness.

A key factor for the S11 Ultra: The new chipset (expected to be the Snapdragon 8 Gen 3 from the Galaxy series or the new Exynos) will use a more energy-efficient architecture than its predecessor. This means that under the same conditions, theGalaxy Tab S11 Ultra Batterylife may be slightly better than the S9 Ultra, as the chip can do more with less power.

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Xiaomi 15T Pro Review: A Phone That Meets the Needs of Most People

The Xiaomi 15T Pro boasts impressive hardware specifications and excellent value, perfectly blending a large, high-brightness screen, smooth performance, and exceptional battery life.Xiaomi 15T Pro Smartphone BatteryIt perfectly balances long battery life with a new 5x telephoto camera. Internally, it’s powered by the new 3.73GHz MediaTek Dimensity 9400 Plus chip and retains last year’s 12GB RAM and 512GB internal storage.Xiaomi 15T Pro Smartphone BatteryThe battery capacity has been increased to 5500mAh, and it still supports 50W wireless charging—although wired charging power has been reduced from 120W to 90W. Front-facing camera face unlock and in-display optical fingerprint unlock are both highly efficient, and connectivity has been upgraded, supporting Wi-Fi 7 and Bluetooth 6.0.High-quality Xiaomi 15T Pro smartphone batterylife test results are once again impressive. The Xiaomi 15T Pro boasts a battery life of 27 hours and 57 minutes, a full 4 hours longer than its predecessor. This battery life is sufficient for a full day of moderate use, making it one of the best-performing phones in this test, second only to the Samsung Galaxy S25. While the reduction in charging power from 120W to 90W is somewhat disappointing, the overall charging speed remains fast. It charges from 0% to 70% in just 30 minutes, after which the charging speed slows down, taking approximately one hour to fully charge. Conclusion: Xiaomi has made several significant improvements to the Xiaomi 14T Pro while maintaining the same price, which is undoubtedly the secret to its success. The Xiaomi 15T Pro smartphone offers longerXiaomi 15T Pro Smartphone Battery life, a larger and brighter screen, a superior telephoto camera, and more powerful performance, with flagship-level specifications far exceeding other products in the same price range.

While some software issues remain, and manufacturers like Google, Samsung, and Honor offer slightly better after-sales support, these shortcomings are far from fatal flaws considering the overall excellence of the Xiaomi 15T Pro. If you’re deterred by the four-figure price tags of modern flagship phones, I strongly recommend abandoning these popular options and considering the more cost-effective Xiaomi 15T Pro instead.

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The Galaxy Buds 4 Pro charging case will be equipped with a larger capacity battery

Galaxy Buds 4 Pro Headphones BatteryLife PredictionSamsung will likely focus on improving battery life and charging speed. Here are the most likely areas for improvement:

1. Increased Battery Capacity

Prediction ItselfGalaxy Buds 4 Pro Earphone BatteryCapacity will likely increase slightly to around 65-70 mAh, while the charging case’s battery capacity will likely increase to approximately 600 mAh.

Reason: This is a direct way to extend playback time without requiring major technological innovations. Competitors have been working to improve battery life.

2. Improved EfficiencyGalaxy Buds 4 Pro Headphones Battery Prediction: The biggest improvement will come from a new, more efficient chipset (Bluetooth and processor).

Reason: A more efficient chip consumes less power when performing the same tasks (such as active noise cancellation and 24-bit audio streaming), directly extending battery life even if the physical battery capacity remains the same.Galaxy Buds 4 Pro Earphone Battery life and charging speed will be significantly improved compared to the Buds 2 Pro, primarily thanks to a larger capacity battery and a more efficient chipset.

Meanwhile, the upcoming Galaxy Buds 4 Pro charging case has a rated capacity of 515mAh. This likely means its advertised capacity is around 530mAh. How much this slight increase in charging case capacity will actually translate into improved battery life remains to be seen.Galaxy Buds 4 Pro Headphones Battery Improved battery life is currently unknown. Whether the regular Buds 4 charging case will receive the same upgrade also remains to be seen.

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The OnePlus 15 has a big battery, but a big trade-off

As you’d expect, the design and durability are surreal.OnePlus has adopted a flatter, boxier form factor with rounded corners and an upgraded camera island. Its highlight is durability: IP69 and IP69K water and dust resistance give the OnePlus 15 a rare level of water and dust resistance, even surpassing the IP68 standard of many high-end phones.

OnePlus 15 Smartphone BatteryThe capacity will likely be between 5500mAh and 6000mAh, ensuring all-day battery life.

Technology and Lifespan:
Long Life Technology: OnePlus has placed a strong emphasis on battery health in recent years, with its “Long Life” battery technology designed to maintain a high original capacity after multiple cycles. This technology will undoubtedly continue in future models.
Power Efficiency Optimization:

OnePlus 15 Smartphone Batterylife depends not only on capacity but also closely on the chipset (such as the upcoming Qualcomm Snapdragon 8 series), the display (LTPO technology), and system power efficiency optimization. The OnePlus 15 will feature deep optimizations in these areas to improve overall battery life.
Sustained performance should be an advantage for extended gaming sessions and 4K video shooting. All connectivity features are also fully featured: Wi-Fi 7 offers multi-link stability, an ultrasonic under-screen fingerprint sensor, and USB 3.2 Gen 1, delivering data transfer speeds exceeding those of traditional USB 2.0 flagship phones.

OnePlus 15 Smartphone BatteryAnd Charging Rewrites the PlaybookThis is OnePlus’s largest battery pack to date. The 7,300 mAh battery is larger than the 6,000 mAh in the OnePlus 13 and more powerful than most mainstream flagship phones (which average around 4,500-5,000 mAh). The OnePlus 15 features 120W wired charging and 50W wireless charging, making it ideal for commuters who frequently use high-refresh screens, use hotspots all day, and then run out of 

OnePlus 15 Smartphone Battery at night.

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Samsung Galaxy Z Fold 8 will reportedly feature a larger battery and reintroduce S-Pen support

The Samsung Galaxy Z Fold 8 is expected to launch next year and is reportedly the successor to this year’s Galaxy Z Fold 7. While key features, pricing, and release date remain unknown, some specifications have leaked online. Rumors suggest the Galaxy Z Fold 8 may feature a larger battery than its predecessor.

Samsung Galaxy Z Fold 8 Phone BatteryThis year’s Galaxy Z Fold 7 lacked S-Pen support. However, the tech company is reportedly bringing back S-Pen support in the Galaxy Z Fold 8. A few months ago, reports surfaced that the company was exploring ways to develop the S-Pen using thinner technology.
Samsung Galaxy Z Fold 8 Specifications and Features (Expected)According to Korean media outlet DealSite, the Samsung Galaxy Z Fold 8’s flexible display will be manufactured using “laser-drilled metal sheet technology” (Korean) to minimize creases on the inner side of the screen. Furthermore, the smartphone is rumored to feature a 5,000 mAh 

Samsung Galaxy Z Fold 8 Phone Battery, up from the 4,400 mAh battery in the previous generation.
Samsung will reportedly reintroduce support for the S-Pen stylus in its next-generation, book-shaped foldable phone. This year’s Galaxy Z Fold 7, launched at the Galaxy Unpacked 2025 event on July 9th, did not include S-Pen support. The feature was removed to achieve a thinner and lighter design. Samsung is developing “thinner and more innovative” technology for the S-Pen stylus.
Samsung will reportedly restore stylus support once it reaches a certain “level of perfection.” The tech giant may also be taking into account growing consumer demand for the S-Pen, as its flagship Galaxy S25 Ultra also lacked some S-Pen features this year. Apple’s foldable phone is rumored to feature a crease-free, flexible screen. It may be powered by Apple’s 2nm A20 Pro chip.

Samsung Galaxy Z Fold 8 Phone BatteryLife could be bette

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Next-generation Motorola Razr 60 Ultra flip phone released, equipped with Snapdragon 8 Elite

Motorola’s latest flagship flip phone, the Razr 60 Ultra, is packed with cutting-edge specs like Qualcomm’s latest Snapdragon 8 Elite and a sleek foldable design. Here’s everything you need to know about Motorola’s best Razr yet.Motorola Razr 60 Ultra BatteryThe battery capacity has been increased to 4700 mAh, with support for 68W wired fast charging and 30W wireless charging, far exceeding the 4000 mAh battery and 44W fast charging of the Razr 50 Ultra.

Motorola Razr 60 Ultra: What’s it all about?

The new flip phone features a 6.96-inch LTPO pOLED display with a resolution of FHD+ and supports a variable refresh rate of 1Hz to 165Hz. Even the 4-inch pOLED cover uses LTPO technology, enabling a variable refresh rate of 1Hz to 165Hz. Both phones have brighter displays than their predecessors, with peak brightness of 4,000 nits and 3,000 nits, respectively. The Motorola Razr 60 Ultra is powered by the Snapdragon 8 Elite SoC, with 16GB of LPDDR5X RAM and 512GB of UFS 4.0 built-in storage.Motorola Razr 60 Ultra Smartphone BatteryIn terms of battery, the phone is equipped with a 4,700 mAh battery, supports 68W fast charging, and is pre-installed with Android 15, promising 3 system updates.

Razr 60 Ultra

Motorola Razr 60 Ultra

This new generation of flip phones is equipped with a large 4,700 mAh Razr 60 Ultra Battery

Supports 68W wired fast charging and 30W wireless fast charging. For photography, the rear camera is equipped with a 50-megapixel main camera (supports OIS optical image stabilization) and a 50-megapixel ultra-wide-angle lens. The front camera is a 50-megapixel selfie camera. Other noteworthy features include: Android 15 operating system out of the box, stereo speakers with Dolby Atmos support, IP48-level water and dust resistance, side fingerprint recognition, Bluetooth 5.4, WiFi 7, and Corning Gorilla Ceramic Glass protection. The official release comes just one month after the global launch of the phone.

Motorola announced that the Razr 60 Ultra will be available in three eye-catching colors, including PANTONE Scarab, PANTONE Rio Red, and PANTONE Mountain Trail. The red model is made of vegan leather, while the Mountain Trail model has a wood finish.

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