Comparing: OPPO A15s eMMC 5.1 vs SanDisk Ultra Flair 64GB

Specification Comparison Table

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Submission Comparison Table

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About Hardware OPPO A15s eMMC 5.1

OPPO A15s eMMC 5.1 is the eMMC (embedded MultiMediaCard) version 5.1-based internal storage chip used in the OPPO A15s smartphone. The eMMC 5.1 technology is a significant upgrade from the previous generation, delivering faster read/write speeds, better power efficiency, and improved performance in data input/output management. While not as fast as the more modern UFS (Universal Flash Storage) technology, eMMC 5.1 remains a reliable storage standard for entry-level to mid-range smartphones.

This storage is designed to provide a seamless user experience, from opening apps, saving files, recording videos, to managing Android system data. It also plays an important role in operating system stability, lightweight multitasking, and response time when the device starts up or switches between apps.

The tests were conducted on an OPPO A15s device with MediaTek Helio P35 (MT6765) specifications, 4GB RAM, and 64GB internal storage, running on Android 10 operating system with ColorOS 7.2 interface. The test was conducted when the device had been in use for approximately two years, so the performance results may be slightly affected by NAND Flash performance degradation over time (wear leveling).

In a benchmark using the Cross Platform Disk Test (Mobile), the eMMC 5.1 on the OPPO A15s recorded a read speed of 145.27 MB/s and a write speed of 50.09 MB/s. This indicates that the storage performance is still solid enough for daily needs such as opening social media, streaming videos, accessing galleries, and saving files from third-party applications.

Overall, the eMMC 5.1 on the OPPO A15s is a well-balanced internal storage solution between price, efficiency, and performance, perfect for users who need a smartphone with responsive capabilities while remaining power efficient. For casual users, this performance is more than enough to run most popular Android apps without a hitch.

Device test (testbed):

Device: OPPO A15s
CPU: MediaTek MT6765 Helio P35
RAM: 4GB
Storage: 64GB
OS: Android 10, ColorOS 7.2

* This hardware test was conducted after the device was approximately 2 years old, there may be some performance degradation.

Tuesday, 06 April 2021 13:51:49 | Update: 1 month ago

About Hardware SanDisk Ultra Flair 64GB

The SanDisk Ultra Flair USB 3.0 64GB (CZ73) is a high-speed flash drive designed for users who need a blend of performance, elegant design and portability. With a 64GB capacity, the drive provides ample space to store important files such as work documents, music, photos, videos, and system installation files.

Using USB 3.0 technology, the SanDisk Ultra Flair delivers read performance of up to 167.76 MB/s (based on CrystalDiskMark tests), allowing users to transfer large files in seconds. The recorded write speed of 54.29 MB/s is also very capable for daily storage activities. In tests with ATTO Disk Benchmark using a 64MB file size, the flash drive recorded a read speed of 71.71 MB/s and write speed of 31.05 MB/s, indicating consistent performance under various usage scenarios.

One of the main attractions of the CZ73 is the metallic body design that not only gives it a premium feel, but also enhances its durability against scratches, light impacts and long-term use. The compact body makes it easy to take anywhere, whether attached to a keychain or directly inserted into a pocket or bag.

In tests using a Lenovo IdeaPad Slim 3i 14ITL6 laptop with Intel Core i5-1135G7 CPU, 12GB DDR4 dual channel RAM, and USB 3.1 Gen 1 port, the performance of this flash drive is highly optimized and stable, suitable for a variety of needs both personal and professional.

The SanDisk Ultra Flair 64GB (CZ73) is a great choice for users looking for a stylish, fast and powerful flash drive that remains competitively priced. Its compatibility with various operating systems, including Windows and macOS, makes it a flexible portable storage solution for everyday digital mobility.

Device test (testbed):

Device: Lenovo IdeaPad Slim 3i 14ITL6
CPU: i5 1135G7
USB: USB 3.1 Gen 1
RAM: 12GB DDR4 3200MHz Dual Channel (8+4)
OS: Windows 11 22H2

Thursday, 11 May 2023 04:16:49 | Update: 1 month ago