This is a (sorta modified) copy-paste from the SuggestALaptop's Discord server explaining the laptop naming schemes of different brands including Lenovo's. Some of this is a bit outdated but this still should be good. Hope this helps you! Previously, Lenovo's non-THINK naming scheme (e.g. Legion Y540, Yoga C940) was: [ misc prefix | position in product stack | generation | 0 ] Recently, branding appears to have changed (e.g. Legion 5i, Yoga Slim 7) to [ descriptor word | product stack position | -i suffix if Intel ] However, the new names lack generational notation, and remain inconsistent between markets and even product lines. Ideapad: Mainstream consumer laptops Yoga: Premium consumer laptops Poorer performance and cooling than Legions; poorer construction, warranties, and performance (to a lesser extent) than Thinkpads. One of the only premium line-ups to not focus on a metal shell, favouring soft-touch plastic instead. Note that "Yoga" no longer denotes a 2-in-1; instead, a prefix is used (S = standard/slim, C = convertible) or dedicated sub-brands (Yoga 2-in-1, Ideapad Flex) exist. Thinkpad: Business productivity and workstation laptops Superior build, warranty, and often solid performance, although stock screens are often poor. Often pricier than consumer units, but not always as outlet options and discount/student pricing is much more readily available than competing Latitudes or Elitebooks. Thinkpads are named by their series (denoting position in the product stack) and screen size. Below sub-series' are roughly ordered by their position in the Thinkpad product stack by price. E-series: Entry-level options for cost-conscious small businesses and students. They have surprisingly good performance and portability. They go as low as sub-650 USD/GBP/EUR on sales. Ryzen models are favoured for their pricing, core count and graphics. L-series: The awkward middle children that are pricier than E-series laptops but lacking the features and build of the T-series. However (as of December 2020), they have fully socketed RAM (rather than half or fully soldered) and are the cheapest options with SMT-enabled Ryzen Pro CPUs. L13 Yogas have good screens for a cheap-ish price. T-series: They are the business flagships with a good build and feature set. CPU power limits (and thus performance) are higher than competing Latitudes and Elitebooks. X-series: Traditionally a sub-compact series of laptops with 12.5" screens. Recent shift to 13.3" screens makes it somewhat redundant next to X1C (and T14) lines. Mostly uses soldered memory. X1: Premium flagships competing with "prosumer" lines. Emphasis on slim and light design hurts performance severely. X1C = 14" ultrabooks with excellent screen options, but are Intel-only with soldered RAM. X1E = 15" light workstations which are XPS 15 like (with similar performance issues). Available with Quadro GPUs as the P1. X1Y = 14" convertibles which are very similar to the X1C. X1T = 13" tablets. P: Workstation laptops that are pricey which usually handle their internals terribly bad. OTHER: Names of older units refers to the series, screen size, generation and CPU (Example: T480 = T-series, 4 = 14" screen, 80 = 8th iteration, with Intel) Thinkpad Edge: Predecessors of the current E-series Thinkpads which were generally horrible. A-series: AMD versions of the T/X line (e.g. A485's, which were the AMD versions of the T480's) that were absorbed into their parent lines after a few generations (succeeded by T495 and then the T14). S-series (stands for Slim), which are rarely worth the price hike. Thinkbook: Prosumer...? In spite of the name, these are mostly just rebranded Ideapads with a sleeker metal shell, made to provide a premium alternative to the plastic Yoga's while capitalising on the Think brand reputation. They are arguably a soft replacement for the entry level business-but-not-really V-series. Legion: Gaming units The Legion 5's are mainstream gaming units aimed towards the lower end, while the 7 series targets the premium market. The Legion 5 (as of December 2020) is currently favoured due to better price-to-performance and design issues with the Legion 7. More on reddit.com

I'm after a 2 in 1 style laptop and always had success with Lenovo in the last so a little confused when started looking and there were many different ranges. Lenovos with "Think" in the model name are business-grade, and generally better quality than others such as "IdeaPad" models. ThinkBook and ThinkPad E-series ... More on forums.whirlpool.net.au

Basically, P (replaced the old W/A/G series) - Workstation class. Beefier CPUs, and often a discrete GPU. Tend to be heavier and run hot. So more of a desktop replacement for engineers/scientists/etc. T series - General purpose higher end business laptops. Various options in terms of CPU etc. X series - Ultraportable. Smaller screens than the T series and sometimes has low power CPU options, but can have fairly beefy ones too. Useful for people who have to work on trains/planes etc... X1 - The fanciest thinnest ultraportable. E/L series (replaced the old R / I series) - Basically cheaper laptops for businesses/students who can't afford a T series More on reddit.com

It has two SSD slots, one under the keyboard, one on the bottom. That is one less than the P15 G2, but surely better than a single slot. More on reddit.com