Samsung Galaxy M15: A Reliable Smartphone with a Large Battery and Balanced Performance

Introduction

The Samsung Galaxy M15 was introduced as the flagship entry-level model in the 2025 Galaxy M-series. It was designed for users who prioritize battery life, an immersive display, and lightweight performance that can handle daily tasks smoothly. Despite its affordable price, this device offers modern features that make it worthy of consideration.

Design & Build Quality

The Galaxy M15 features a simple yet elegant design. The body uses high-quality polycarbonate plastic with a matte finish, making it slippery and fingerprint-resistant. Although not a premium material like aluminum or glass, the body still feels sturdy and is quite light, weighing around 190 grams.

The body's edges are slightly rounded for a comfortable grip, and color options like Black Midnight, Blue Sapphire, and Lilac Frost provide a contemporary feel. The display uses mid-range Gorilla Glass for basic protection against minor scratches.

Display

One of the Galaxy M15's main strengths is its display. It features a 6.6-inch Super AMOLED panel with Full HD+ resolution (~1080x2400 pixels), and a high 90Hz refresh rate. The result is a sharp display with vibrant colors and responsiveness when scrolling or opening apps.

The screen brightness is also quite high, allowing for comfortable use outdoors, even in direct sunlight. The AMOLED's distinctive color contrast makes videos, photos, and games look vibrant and engaging.

Performance & Hardware

The Galaxy M15 is powered by a MediaTek Dimensity 600 series chipset, which is sufficient for everyday multimedia activities such as browsing, social media, video streaming, and light multitasking. The combination of an octa-core CPU and built-in GPU provides a smooth user experience without significant lag.

6GB of RAM and RAM Plus (virtual RAM) support help maintain stable performance when opening multiple apps simultaneously. Internal storage uses 128GB of eMMC 5.1, with support for microSD cards up to 1TB for storage expansion without sacrificing performance.

Camera & Video

On the back, the Galaxy M15 features a triple-camera setup consisting of a 50MP main camera, an 8MP ultra-wide sensor, and a 2MP macro sensor. The main camera delivers fairly sharp results and natural colors in daylight. The ultra-wide sensor allows for wide-angle shots of up to 120°, suitable for landscapes or group photos, although detail drops slightly towards the edges of the frame.

The macro camera allows for very close-up shots, although the quality isn't significantly superior to the main lens. The 13MP front camera is sufficient for selfies and video calls, with a light beauty filter and recording up to Full HD 30fps.

The Galaxy M15 supports video recording at up to 1080p resolution at 30fps, without OIS. Video quality is stable enough for everyday use, but not suitable for content creators looking for professional video output.

Battery & Charging

The Galaxy M15's most striking strength is its 6,000mAh battery, which can last more than a day of normal use. In mixed-lifestyle testing (social media, browsing, and streaming), the device lasted up to 1.5–2 days without recharging.

Fast charging is also available: the Galaxy M15 supports 25W fast charging, which can charge the battery to about 50% in 30–35 minutes. However, a full charge still takes a little over an hour. Wireless charging is not available.

Connectivity & Additional Features

The Galaxy M15 supports 5G networks in all variants, making it ready for use in urban areas with modern network infrastructure. Dual-band Wi-Fi, Bluetooth 5.3, NFC for digital payments, and a 3.5mm audio jack and microSD card slot are significant advantages in this price range.

The fingerprint sensor is located on the right side of the body (next to the power button), providing a fast and ergonomic authentication method. The single speaker produces monaural audio but is loud and clear enough for everyday use.

Software & User Experience

The Galaxy M15 is equipped with the One UI 7 operating system based on Android 15, an intuitive and streamlined interface. Samsung promises up to four Android version updates and five years of security patches.

One UI provides features like Secure Folder, Samsung Wallet, and quick access to Samsung services. Hyper-efficient mode is available to extend battery life when needed.

The overall user experience is comfortable—responsive and minimally jittery, suitable for both beginners and active users.

Everyday Experience

When used for everyday activities, the Galaxy M15 stands out for its ability to last long without recharging. The bright Super AMOLED display makes watching videos and reading content enjoyable, while the chipset's performance ensures smooth running of lightweight apps.

While the camera isn't as impressive as the models above, the triple camera setup is sufficient for everyday documentation needs such as food photos, social moments, or selfies. The microSD card slot option provides additional flexibility that's increasingly difficult to find these days.

Pros

• Large 6,000mAh battery with 1–2 full days of battery life
• 6.6-inch Full HD+ Super AMOLED display with a high refresh rate and vivid colors
• 5G connectivity, 3.5mm audio jack, microSD slot, and NFC
• 25W fast charging, which is still rare in the entry-level class
• One UI 7 with a long-term update guarantee
• Ergonomic fingerprint sensor on the side of the body

Cons

• Plastic body feels less premium than other models
• Ultra-wide and macro cameras are of limited quality
• Chipset performance is less powerful for heavy gaming
• Mono speaker and no OIS support for video
• Charging is not as fast as flagship smartphones

Is the Galaxy M15 Worth Buying?

If you need a smartphone with exceptional battery life, a clear display, and comprehensive features like 5G and a microSD slot without breaking the bank, the Samsung Galaxy M15 is a very attractive option. It's suitable for students, mobile workers, or anyone who wants a device with high-end durability and screen comfort without the premium price.

However, if you're looking for a device for heavy gaming or professional photography, you might want to consider the higher-end M series or flagship models.

Conclusion

The Samsung Galaxy M15 solidifies its position as a top-tier entry-level device, prioritizing battery life, a super AMOLED display, and modern features like 5G and NFC. While its shortcomings are reasonable for this price range, its advantages far outweigh its shortcomings. If you're looking for a versatile smartphone with above-average durability, the Galaxy M15 is worth considering.