Buzz
The Galaxy J7 Prime is a battery endurance marvel. In practical tests, the device can stay on screen for an impressive 9 hours and 20 minutes, resulting in an estimated total mixed-use duration of over 23 hours.
1. Detailed Review of Samsung Galaxy J7 Prime Battery Life - Over 23 Hours of Mixed Usage
With a relatively 'heavy' configuration and a 5.5-inch FullHD resolution display, one might expect some strain on the device's 3,300 mAh battery. However, the reality is that the Galaxy J7 Prime is a battery endurance beast. In real-world tests, the device can stay on screen for up to 9 hours and 20 minutes, resulting in an impressive estimated total mixed-use duration of 23 hours and 20 minutes - a truly remarkable figure. During usage, the device remains cool even when handling intensive tasks like continuous gaming.
Below are more detailed insights into the battery life of the J7 Prime and the process I followed to achieve these impressive results. Stay tuned for further details.
Configuration:
Processor: Exynos 7870 - 8-core Cortex A53 (1.60GHz)
Display: Full HD 5.5', 1920 x 1080, ~401 ppi
RAM: 3 GB
Internal Storage: 32 GB
External Storage: microSD
Rear Camera: 13 MP, f/1.9, 28mm
Front Camera: 8 MP, f/1.9
Battery: 3,300 mAh
Test Parameters:
Using unmodified Android xx version, no customization, no Root.
Screen brightness maintained at 50% (not set to auto). Wifi + 3G + Location + Sync always on.
Test environment: outdoor temperatures ranging from 27℃ - 31℃ (throughout the day).
Software used during the test: Facebook, Messenger (FB), Stock Browser, Asphalt 8, CPU-Z, Battery Widget, MX Player.
Testing Procedure:
Each task tested for 30 minutes until the battery drained, including: web browsing (web + chat + fb + reading news), watching YouTube, playing games (Asphalt 8), all done using Wifi.
Standby process continuously received emails and Facebook messages.
Continuous movie playback, with the test movie being The Jungle Book 720p x264.
Mixed-use duration: 23 hours and 20 minutes, on-screen time: 9 hours and 20 minutes
Direct competitors to the J7 Prime include the Sony Xperia XA and Oppo F1s. While the J7 Prime might lack distinctive design compared to the sleek XA, and perhaps falls slightly short in selfie camera prowess compared to the F1s, it clearly dominates in battery life, representing Samsung's prowess in this segment.
Xperia XA packs a 2,300 mAh battery - on-screen time of 4 hours and 30 minutes. F1s with a 3,075 mAh battery achieves 6 hours of on-screen time. Meanwhile, the 3,300 mAh battery of J7 Prime allows it to last on-screen for an impressive 9 hours and 20 minutes. With such on-screen time, the mixed-use duration of J7 Prime can be estimated at around 23 hours and 20 minutes, more than sufficient for a day of usage.
In simpler terms, mixed-use duration means that if you fully charge the device and unplug it at 7 am, you can use it until 6:20 am the next day before the battery is depleted. In reality, this time depends on your usage habits, but if you are a heavy gamer, this smartphone is more than capable.
An impressive aspect of the J7 Prime is its cool performance even during heavy tasks like continuous gaming. This is significant as excessive heat during prolonged gaming can affect the handheld experience and cause discomfort due to the speaker area heating up during calls.
Continuous movie playback time is 11 hours and 10 minutes
While not outstanding, the screen is arguably the most impressive aspect during my usage of the J7 Prime, especially for watching movies. The 5.5-inch display with good image quality allows for a comfortable movie-watching experience. The limitation lies in the somewhat small speaker for audio. Real-world testing shows that the device can continuously play movies for 11 hours and 10 minutes.
In the package, Samsung includes a 5V/1.55A charger for users. It's a bit regrettable as the device's battery is quite large, so this charger doesn't allow for optimal charging speed. It takes approximately 2 hours and 18 minutes to charge the J7 Prime from empty to 100%.
Comparison with other devices
