内容来源：https://lifehacker.com/tech/samsungs-m-series-tvs-sale-august-2026?utm_medium=RSS

内容总结：

三星两款大屏电视在亚马逊降价促销，其中65英寸M80H从797.99美元降至647.99美元，75英寸M70H则从597.99美元降至549.99美元，均创下历史最低价。选购时关键在于你是更看重游戏性能，还是更想要大屏幕。M80H配置更强，支持HDMI 2.1接口和144Hz高刷新率，适合搭配新一代游戏主机或高性能PC，但需注意其像素响应速度偏慢，动态画面可能仍显拖影，不必单纯为144Hz标签买单。

75英寸M70H则更符合“大屏优先”的思路，549.99美元的价格就能为客厅带来超大画面，适合主要用来看剧、体育赛事和电影的家庭，而非追求高帧率的玩家。不过两款电视在暗光环境下表现一般，均未配备真正的局部调光技术，黑场画面容易发灰，对比度不足；亮光环境下也存在反光问题，客厅采光好的话需注意摆放位置。M80H在标准内容下的色彩准确度出厂调校较好，且三星智能电视平台可直接运行主流流媒体应用，无需外接设备。

总体来看，这两款电视更适合作为性价比之选而非升级之选。如果预算有限只想花550美元左右买台75英寸电视，M70H是合理选择；若是明确需要HDMI 2.1和更高刷新率，M80H更合适。但如果更重视HDR效果、黑位表现或游戏画质，建议同时考虑TCL QM6K或海信U65QF，这两款都带局部调光，整体画质更强，更适合优先追求画质的用户，而非冲着三星品牌去。

中文翻译：

三星65英寸M80H在亚马逊上从797.99美元降至647.99美元，而更大的75英寸M70H则从597.99美元降至549.99美元，价格追踪工具显示这两款产品均处于迄今最低价。选择的关键在于你更看重游戏功能，还是想用同样的钱买到最大的屏幕。M80H从纸面参数上看性能更强，配备了HDMI 2.1带宽和144Hz刷新率，因此如果你打算连接新款主机或游戏PC，它更合适。即便如此，我也不会仅仅为了“144Hz”这个标签就买它，因为其较慢的像素响应时间仍会让高速运动画面看起来模糊。

75英寸M70H则更容易理解，它是一款以“尺寸优先”为导向的产品。549.99美元的价格，能让你在家庭客厅里获得大屏体验，而大多数时间你只是用它来看流媒体剧集、体育赛事或电影，而不是追求高帧率。不过，这两款电视在暗光房间里的表现都不算特别出色，因为它们都缺乏真正的局部调光，较低的对比度会让黑色场景看起来偏灰而非纯黑。它们在较亮房间里的反光问题也更明显，因此如果你的客厅采光充足，摆放位置就很重要。M80H至少在标准内容下出厂色彩准确度不错，而三星的智能电视平台意味着这两款产品都能直接运行常用的流媒体应用，无需外接其他设备。

这也是为什么我会把它们视为“性价比之选”而非明显的升级款。如果你的首要目标只是花大约550美元买到一台75英寸电视，M70H是合理的选择；而如果你明确需要HDMI 2.1和更高刷新率，M80H则更合适。如果你更关注HDR、黑色位阶或游戏性能，也应该看看TCL QM6K或海信U65QF等替代品，因为这两款都加入了局部调光，整体画质表现更强，对于更看重画质而非三星品牌的人来说，它们都是更好的选择。

英文来源：

Samsung’s 65-inch M80H is down to $647.99 from $797.99 on Amazon, while the larger 75-inch M70H is $549.99 from $597.99, with price trackers showing both at their lowest prices so far. The choice really comes down to whether you care more about gaming features or getting the biggest screen for your money. The M80H is the more capable option on paper, with HDMI 2.1 bandwidth and a 144Hz refresh rate, so it makes more sense if you plan to connect a newer console or gaming PC. Even then, I would not buy it just for the 144Hz label, because its slower pixel response can still make fast motion look blurry.
The 75-inch M70H is easier to understand as a size-first buy. At $549.99, it gives you a lot of screen for a family room where most of the time will be spent streaming shows, watching sports, or putting on movies rather than chasing high frame rates. Neither TV is especially strong in a dark room, though, since both lack true local dimming and their lower contrast can make black scenes look more gray than black. They also struggle more with glare in brighter rooms, so placement matters if your living room gets a lot of daylight. The M80H at least has good out-of-box color accuracy for standard content, while Samsung’s smart TV platform means both sets can handle the usual streaming apps without needing another device.
That is also why I would treat these as value buys rather than obvious upgrades. The M70H makes sense if your priority is simply getting a 75-inch TV for around $550, while the M80H is the better fit if you specifically want HDMI 2.1 and a higher refresh rate. Anyone more focused on HDR, black levels, or gaming performance should also look at alternatives like the TCL QM6K or Hisense U65QF, since both add local dimming and stronger overall picture performance, making either a better fit for someone prioritizing picture quality over the Samsung name.