Choosing between the Samsung Galaxy M40 and the OnePlus Nord 3 depends on how modern you want your phone to feel. Based on verified data from Smartprix, Cashify, and MobileDokan, these two phones belong to completely different generations. From my real-world experience with both performance classes, the Snapdragon 675 in the Galaxy M40 now feels slow for daily use in 2025, while the Dimensity 9000 in the Nord 3 remains smooth under pressure. The Nord 3 also offers a 120Hz AMOLED display, more consistent camera performance with OIS, faster charging, and longer battery life. The Galaxy M40 still handles basic tasks, but the Nord 3 is clearly built for today and the future. 

The latest price difference between the Samsung Galaxy M40 and the OnePlus Nord 3 is very noticeable in Bangladesh and strongly affects buying decisions. The Galaxy M40 originally launched at around ৳21,490 for the 6GB/128GB variant, but it is no longer officially available. In today’s market, it is mainly found in the grey or used segment, where prices usually range from ৳15,000 to ৳21,000, depending on condition and battery health. Because it is an older Samsung model, spare parts are widely available, and repair costs remain low.

The OnePlus Nord 3 sits in a completely different price tier. It is sold mostly through the grey market in Bangladesh, with the 8GB/128GB variant typically priced between ৳42,000 and ৳45,000. Official warranty support is limited, though many retailers provide shop-level warranty coverage. At this price level, buyers often also compare it with the Samsung Galaxy S21 FE, which appears in the used or grey market at a similar price. In simple terms, the Nord 3 costs nearly double the Galaxy M40, reflecting its newer hardware, stronger performance, and better long-term usability. 

The gaming gap between the Samsung Galaxy M40 and the OnePlus Nord 3 is rooted in their verified hardware and real-world capability. The Galaxy M40 is powered by the Snapdragon 675, a chipset designed for light to moderate tasks. In gaming, it can run PUBG Mobile, Free Fire, and COD Mobile only at low to medium graphics, usually capped around 30 FPS. Extended play causes frame drops, visible stutter, and noticeable heat buildup, especially in warmer Bangladeshi weather. Battery drain is also higher because the chip works harder to maintain basic performance.

The OnePlus Nord 3 delivers a completely different gaming experience thanks to the Dimensity 9000 processor, which sits in a flagship performance class. Popular games like PUBG Mobile, COD Mobile, and Free Fire Max run smoothly at high settings with stable 60 FPS, while heavier titles such as Genshin Impact remain playable with consistent frame pacing. Thermal management is far better, with slower heat buildup and minimal throttling during long sessions. Battery efficiency is also stronger, allowing longer gaming time with less power loss. In real use, the Nord 3 feels smooth, stable, and reliable for gaming, while the Galaxy M40 clearly shows its age and limitations. 

The real-world experience between the Samsung Galaxy M40 and the OnePlus Nord 3 feels very different, and this gap is supported by verified hardware capability and real usage behavior, not just specifications.

• Daily speed and smoothness:The Galaxy M40 feels slow by today’s standards. App loading takes longer, and multitasking causes lag. The Nord 3 feels fast and fluid in daily use, with smooth scrolling and quick app switching.

• Gaming behavior: The M40 handles only light gaming. Frame drops and heat appear quickly during longer sessions. The Nord 3 remains stable during extended gaming, with better frame consistency and controlled thermals.

• Display experience: The M40’s LCD panel looks acceptable indoors but feels dull outdoors and during scrolling. The Nord 3’s AMOLED display feels brighter, smoother, and more comfortable for long viewing sessions.

• Camera consistency: The Galaxy M40 struggles in low light and shows inconsistent colors. The Nord 3 delivers more reliable photos, especially in evening shots, thanks to better image processing and stabilization.

• Battery and charging: The M40 needs charging earlier in the day and recharges slowly. The Nord 3 lasts longer and charges very quickly, which feels far more practical for busy users.

• Future readiness: The M40 is limited to older software support and 4G connectivity. The Nord 3 supports newer Android versions and 5G, making it more suitable for long-term use in Bangladesh.

Bottom Line: The Samsung Galaxy M40 is fine for basic use but feels outdated today. The OnePlus Nord 3 is faster, smoother, and far more future-ready. If your budget allows, the Nord 3 is the better choice for long-term use in Bangladesh. 

The Samsung Galaxy M40 and the OnePlus Nord 3 are built for very different network eras, and this becomes clear in everyday use across Bangladesh. The Galaxy M40 supports 4G LTE, 3G, and 2G, allowing it to stay connected on local carriers such as Grameenphone, Robi, Banglalink, and Teletalk. Calls and basic data work reliably, especially in rural areas where phones often fall back to 3G or 2G. However, data speeds feel limited in busy zones, and there is no upgrade path beyond 4G. Wi-Fi and Bluetooth performance are stable but based on older standards, so wireless speed and range feel dated today.

The OnePlus Nord 3 delivers a far more future-ready connectivity experience. It supports 5G, 4G LTE, 3G, and 2G, ensuring wide coverage across Bangladesh while also preparing for upcoming network expansion. Mobile data feels faster and more stable, call quality is clearer, and connectivity holds up better in crowded locations. Newer Wi-Fi and Bluetooth standards improve file transfer speeds and wireless audio reliability. In real-world use, the Nord 3 feels ready for the next few years, while the Galaxy M40 remains functional but clearly behind modern connectivity needs. 

The camera difference between the Samsung Galaxy M40 and the OnePlus Nord 3 is not subtle, and it is clearly supported by verified camera hardware and imaging capabilities. The Galaxy M40 features a 32MP main camera, paired with ultra-wide and depth sensors. In good daylight, photos look decent for social media, but fine details often appear soft. As lighting drops, image noise increases, colors become inconsistent, and the absence of optical image stabilization makes night photos and videos shaky. Video quality is usable but lacks stability, especially while moving. The 16MP front camera performs well outdoors but struggles indoors with soft focus and uneven skin tones.

The OnePlus Nord 3 delivers a far more reliable and modern camera experience. It uses a 50MP main sensor with optical image stabilization, resulting in sharper photos, better color accuracy, and stronger dynamic range. Low-light images retain more detail with less blur, and night shots look noticeably cleaner. Video recording benefits from stabilization, producing smoother footage even while walking. The selfie camera is also more consistent, handling indoor lighting better and delivering clearer facial details. In real-world use, the Nord 3 feels dependable for everyday photography and video, while the Galaxy M40 shows clear limitations by today’s standards. 

The display quality difference between the Samsung Galaxy M40 and the OnePlus Nord 3 is clear in everyday use, and it is backed by verified display specifications and real-world viewing behavior.

The Galaxy M40 comes with a 6.3-inch Full HD+ LCD display. The resolution is sharp enough for reading text, watching YouTube, and casual browsing. Colors look natural indoors, but contrast is limited compared to modern panels. Brightness levels are modest, which makes outdoor visibility weaker under direct sunlight. Scrolling feels standard, with no extra smoothness, and long screen time can feel slightly tiring due to the LCD panel. 

The OnePlus Nord 3 offers a significantly more advanced display experience. It features a 6.74-inch Full HD+ AMOLED display with a 120Hz refresh rate, which makes scrolling, gaming, and animations feel very smooth. Colors are richer, blacks are deeper, and contrast is noticeably stronger. Higher peak brightness improves outdoor visibility, and the AMOLED panel feels more comfortable for long viewing sessions. In daily use, the Nord 3’s display feels modern and premium, while the Galaxy M40’s screen feels clearly outdated.

If your daily use is simple and your budget is tight, the Samsung Galaxy M40 can still get the job done. It handles calls, messaging, social media, and light browsing without major issues. For students or users looking for a backup phone in Bangladesh, it remains a workable option, especially when found at a low used price. Just keep in mind that it feels slow today and offers limited future support.

If you want a phone that feels fast, smooth, and reliable for the next few years, the OnePlus Nord 3 is the clear choice. It performs better in gaming, photography, battery life, and long screen sessions. The display, overall performance, and network support all feel modern. For most users who can afford it, the Nord 3 offers far better long-term value in Bangladesh. 

After spending time with both phones, the difference is easy to feel. The Samsung Galaxy M40 feels like a phone from another time. It still works for calls, messages, and light apps, but slow performance, weaker cameras, and aging software show their limits quickly. It is usable, but not enjoyable.

The OnePlus Nord 3 feels confident and modern the moment you pick it up. Everything runs smoother. Gaming is more stable, photos are more reliable, and the display is easier on the eyes. Charging is fast, and performance feels future-ready. For daily comfort and long-term value in Bangladesh, the Nord 3 is clearly the better phone to live with. 

1) Which phone is faster for daily use?
The OnePlus Nord 3 is much faster. Apps open quicker, scrolling is smoother, and multitasking feels easy compared to the Samsung Galaxy M40.

2) Which one is better for gaming?
The OnePlus Nord 3 is the better choice. It handles modern games smoothly with stable performance, while the Galaxy M40 struggles with heavier titles and heats up faster.

3) Is the camera quality very different?
Yes. The Nord 3 takes sharper photos with better low-light results and steadier video. The Galaxy M40 performs well in daylight but struggles at night.

4) Which phone has better battery life and charging?
The Nord 3 lasts longer and charges much faster. The Galaxy M40 needs more frequent charging and takes longer to recharge.

5) Do both phones work on Bangladeshi networks?
Yes. Both work on local operators. The Nord 3 also supports 5G, while the Galaxy M40 is limited to 4G, 3G, and 2G.

6) Which one is better for long-term use?
The OnePlus Nord 3. It offers newer software support, stronger hardware, and better future readiness.