Samsung Galaxy Book Flex 2 Alpha 13-inch vs Samsung Galaxy Book 4 Pro 16 Comparison

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Samsung Galaxy Book Flex 2 Alpha 13-inch

13.3 inches | April 2021

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Samsung Galaxy Book 4 Pro 16

16 inches | December 2023

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Samsung Galaxy Book Flex 2 Alpha 13-inch vs Samsung Galaxy Book 4 Pro 16 Comparison Overview

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In this review, we will be comparing Galaxy Book Flex 2 Alpha 13-inch and Galaxy Book 4 Pro 16 , two laptops by Samsung. Samsung Galaxy Book Flex 2 Alpha 13-inch was introduced to market in April 2021 and Samsung Galaxy Book 4 Pro 16 was launched in December 2023. As you can see, Galaxy Book Flex 2 Alpha 13-inch is 2 years older than Galaxy Book 4 Pro 16 . Let's see if this age difference between two laptops makes a big difference.

Click for Available Configurations of the Laptops

Galaxy Book Flex 2 Alpha 13-inch and Galaxy Book 4 Pro 16 are members of Samsung's Galaxy Book series of laptops. Below you can find the latest models from this series.

Samsung Galaxy Book Series History

	Release Date	Screen Size	Dimensions	Weight
Samsung Galaxy Book 5 Pro 14	February 2025	14.0"	312.3 x 223.8 x 11.6 mm	1.23 kg (2.71 lbs)
Samsung Galaxy Book 5 Pro 16	February 2025	16.0"	355.4 x 250.4 x 12.5 mm	1.56 kg (3.44 lbs)
Samsung Galaxy Book 5 360 15.6	January 2025	15.6"	355.4 x 228 x 13.7 mm	1.46 kg (3.22 lbs)
Samsung Galaxy Book 5 Pro 360 16	September 2024	16.0"	355.4 x 252.2 x 12.8 mm	1.69 kg (3.73 lbs)
Samsung Galaxy Book 4 Edge 14	May 2024	14.0"	312.3 x 223.8 x 10.9 mm	1.16 kg (2.56 lbs)
Samsung Galaxy Book 4 Edge 16	May 2024	16.0"	355.35 x 255.44 x 12.3 mm	1.55 kg (3.42 lbs)
Samsung Galaxy Book 4	March 2024	15.6"	356.6 x 229.1 x 15.4 mm	1.55 kg (3.42 lbs)
Samsung Galaxy Book 4 Pro 14	December 2023	14.0"	312.3 x 223.8 x 11.6 mm	1.23 kg (2.71 lbs)

Here is a brief look at the main features of Samsung Galaxy Book Flex 2 Alpha 13-inch and Samsung Galaxy Book 4 Pro 16 before getting into our more detailed comparison.

Samsung Galaxy Book Flex 2 Alpha 13-inch Key Specs

Launched in April 2021
13.3" TouchScreen - IPS LCD, 16:9 Aspect Ratio Display
CPU: Intel Core i5 1135G7
GPU: Intel Iris Xe Graphics G7 (80EU)
8GB Ram
304.8 x 201.93 x 13.97 mm (12 x 7.95 x 0.55 inches)
Weight: 1.18 kg (2.6 lbs)

Samsung Galaxy Book 4 Pro 16 Key Specs

Launched in December 2023
16.0" Touchscreen - OLED, 16:10 Aspect Ratio Display
CPU: Intel Core Ultra 7 155H
GPU: Intel Arc iGPU (8-Cores)
16GB Ram
355.4 x 250.4 x 12.5 mm (13.99 x 9.86 x 0.49 inches)
Weight: 1.56 kg (3.44 lbs)

Let's read on the following sections in order to better understand in detail how Galaxy Book Flex 2 Alpha 13-inch and Galaxy Book 4 Pro 16 compares and decide which one is better for you.

**This post contains affiliate links and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.

Reasons to choose Samsung Galaxy Book Flex 2 Alpha 13-inch over Samsung Galaxy Book 4 Pro 16

Weight	1.18 kg vs 1.56 kg	0.38 kg lighter
Side Bezel Thickness	5.2 mm vs 5.4 mm	0.2 mm thinner bezels
2-in-1 Design	Yes vs No	Use like a tablet
Max Brightness	600 nits vs 400 nits	Brighter Screen

Reasons to choose Samsung Galaxy Book 4 Pro 16 over Samsung Galaxy Book Flex 2 Alpha 13-inch

Screen-to-Body Ratio	~83.4% vs ~79.2%	Larger screen area ratio
Display Size	16 inches vs 13.3 inches	Larger Screen Estate
Refresh Rate	120 Hz vs 60 Hz	Smoother media experience
Screen PPI	212 ppi vs 166 ppi	More pixels per inch
Screen Resolution	2880 x 1800 pixels vs 1920 x 1080 pixels	Higher pixel count screen
CPU Fabrication Process	7 nm vs 10 nm	Newer Generation CPU
GPU Fabrication Process	5 nm vs 10 nm	Newer Generation GPU
GPU FLOPS	5.76-6.02 TFLOPS vs 1.41 TFLOPS	Charges via USB-C type cable
USB Power Delivery	Yes vs No	Faster RAM Type
RAM Type	LPDDR5X vs LPDDR4X	Faster RAM
RAM BUS	PCI-E Gen 4.0 (4x) vs PCI-E Gen 3.0 (4x)	More advanced Bluetooth connectivity
Bluetooth	v5.3 vs v5.1	Higher Resolution Camera
Webcam Resolution	1920 x 1080 vs 1280 x 720	Connect more device at the same time
Number of USB-C Ports	2x USB 4.0 vs 1x USB 3.2	Faster USB-C connection
USB-C Port Type	v4.0 vs v3.2	Support audio, data, power and video all through one single port
Thunderbolt	v4 vs No	Better HDMI connectivity
HDMI Version	2.1 vs 2.0	Fast way to input numbers
Numeric Pad	Yes vs No	Larger Touchpad Area
Touchpad Size	15.1 x 10.8 cm vs 11.9 x 7.8 cm

Common Strengths of Samsung Galaxy Book 4 Pro 16 and Samsung Galaxy Book Flex 2 Alpha 13-inch

Launch Dates	April 2021 vs December 2023	Both laptops are recent models
Screen Type	Touch Screen vs Touch Screen	Interact with your fingers
HDR Support	Yes, HDR10 vs Yes, HDR10	Watch HDR Clips
Fast Charging Support	Yes vs Yes	Charge the battery in a shorter time
RAM Type	PCI-E Gen 3.0 (4x) vs PCI-E Gen 4.0 (4x)	Fast RAM type
Upgradable Storage	Yes vs Yes	Option to increase the Storage size
SSD Type	NVMe vs NVMe	Faster Data Transfers
Dolby Atmos Support	Yes vs Yes	3D Surround Sound Support
Wi-Fi Standard	v6E vs v6E	Fast and Reliable Wi-Fi Connections
Fingerprint Sensor	Yes vs Yes	Easy Login with Fingerprint Sensor
HDMI Output	1x HDMI 2.0 vs 1x HDMI 2.0	Connect to External Displays via HDMI cable
VGA Output	No vs No	Connect to External Displays via VGA cable
Built-in SD Card Reader	Yes vs Yes	Read & Write SD Cards
Keyboard Backlight	Yes vs Yes	Easily see the keys under low light

Common Weaknesses of Samsung Galaxy Book 4 Pro 16 and Samsung Galaxy Book Flex 2 Alpha 13-inch

Upgradable RAM	No vs No	No Option to increase the RAM size

Samsung Galaxy Book Flex 2 Alpha 13-inch vs Samsung Galaxy Book 4 Pro 16 : Physical Specs Comparison

In this section, we will be comparing the physical specifications and body features of the Samsung Galaxy Book Flex 2 Alpha 13-inch and the Samsung Galaxy Book 4 Pro 16 .

Physical Specs
Weight	1.18 kg (2.6 lbs)	1.56 kg (3.44 lbs)
Surface Area	615 cm2 (95.4 inches2)	890 cm2 (137.9 inches2)
Screen to Surface Ratio	~79.2%	~83.4%
Side Bezel Thickness	~5.2 mm	~5.4 mm
Weight per Inch of Screen	0.09 kg/inch	0.10 kg/inch
	0.198 lbs/inch	0.22 lbs/inch
Colors	Black, Silver	Silver, Gray
Cover Opening Angle	360Â°	125Â°

Comparison of the Samsung Galaxy Book Flex 2 Alpha 13-inch and the Samsung Galaxy Book 4 Pro 16 External Dimensions

Weight

Galaxy Book Flex 2 Alpha 13-inch weighs 1.18 kg (2.6 lbs), whereas the Galaxy Book 4 Pro 16 weighs 1.56 kg (3.44 lbs). There is a notable difference in weight between these two laptops. However, it's important to consider that comparing their weights directly may not provide a complete picture since they also have different display sizes.

Weight Comparison

Samsung Galaxy Book Flex 2 Alpha 13-inch 1.18 kg

Avg: 13.0-13.9" 1.22 kg

Samsung Galaxy Book 4 Pro 16 1.56 kg

Avg: 16.0-16.9" 2.07 kg

Thickness Comparison

Samsung Galaxy Book Flex 2 Alpha 13-inch 14.00 mm

Avg: 13.0-13.9" 15.38 mm

Samsung Galaxy Book 4 Pro 16 12.50 mm

Avg: 16.0-16.9" 20.35 mm

Another value that we use for comparing the weights of the laptops is the Weight per Inch of Screen, which is calculated by dividing the total weight of the model with its usable diagonal screen size. This value for the Samsung Galaxy Book Flex 2 Alpha 13-inch is 0.09 kg/inch.In comparison, this value for the Samsung Galaxy Book 4 Pro 16 is 0.10 kg/inch.Here are some of the best performing laptops in this area:

Microsoft Surface Go 4: 0.05 kg/inch
LG Gram SuperSlim 15.6 2023: 0.06 kg/inch
Asus ProArt PZ13 HT5306: 0.06 kg/inch
Asus Zenbook A14 UX3407: 0.06 kg/inch
Dell Latitude 7330: 0.07 kg/inch
Lenovo ThinkPad X1 Nano Gen 2: 0.07 kg/inch
LG Gram 14 2022: 0.07 kg/inch
LG Gram 14 2-in-1 2022: 0.07 kg/inch

Samsung Galaxy Book Flex 2 Alpha 13-inch vs Samsung Galaxy Book 4 Pro 16 : Internals (CPU, GPU, RAM, Battery, SSD, etc.) Comparison

CPU Comparison

CPU Model	Intel Core i5 1135G7 Intel Core i7 1165G7	Intel Core Ultra 7 155H Intel Core Ultra 7 165H Intel Core Ultra 9 185H
Base Frequency	0.9-2.4 GHz	3.8 GHz
Turbo Frequency	4.2 GHz	4.8 GHz
Number of Cores	4	0
Number of Threads	8	22
L3 Cache	8 MB	24 MB
Integrated GPU	Iris Xe Graphics G7 80EU	Arc Graphics (8-Cores)
CPU Fabrication Process	10 nm	7 nm
Cinebench 23 (Single)	1355	1745
Cinebench 23 (Multi)	5087	14983

Above you can see the CPU options and the CineBench and GeekBench test scores for both laptops, which gives an idea about what kind of performance difference you may experience between the Samsung Galaxy Book Flex 2 Alpha 13-inch and Samsung Galaxy Book 4 Pro 16 .

You may also read reviews of latest laptops with the same CPUs and compare them:

Laptops with: Intel Core i5 1135G7

Laptops with: Intel Core Ultra 7 155H

GPU Comparison

GPU Model	Intel Iris Xe Graphics G7 (80EU)	Intel Arc iGPU (8-Cores)
Base Clock Frequency	300 MHz
Boost CLock Frequency	1100 MHz
TGP (Total Graphics Power)	15 W
Type	Integrated	Integrated
FLOPS	1,408 GFLOPS	5.76-6.02 TFLOPS
Memory Size	System Shared	System Shared
Memory Type	System Shared	LPDDR5X
Memory Bus	System Shared
Memory Speed	System Shared	7.47 Gbps
Shading Units Cores	640	128
TMUs	40	8
ROPs	20	4

GPU is as critical as the CPU for graphic heavy applications and the table above gives a picture of how the two GPU compares. FLOPS is a measure of a GPU's performance based on the number of floating-point arithmetic calculations that the processor can perform within a second. Samsung Galaxy Book Flex 2 Alpha 13-inch has a FLOPS value of 1.41 TFLOPS whereas the Samsung Galaxy Book 4 Pro 16 ' has a FLOPS value of 5.76-6.02 TFLOPS. If graphical performance of the laptop is important for your use type, the Samsung Galaxy Book 4 Pro 16 may be the better choice between these two setups.

RAM Comparison

RAM	8GB 16GB	16GB 32GB
Memory Bus	2x4 GB	2x8 GB
RAM Clock	4267 MHz	7467 MHz
RAM Type	LPDDR4X	LPDDR5X
Upgradable	No	No
Memory Bus	PCI-E Gen 3.0 (4x)	PCI-E Gen 4.0 (4x)

The Galaxy Book 4 Pro 16 provides a larger RAM capacity of 16 GB, which allows for smoother multitasking and improved performance in memory-demanding tasks compared to the Galaxy Book Flex 2 Alpha 13-inch's RAM capacity of 8 GB.

LOCAL LLM Compatibility Evaluation

This quick guide shows what types of large language models (LLMs) each of these laptops could support, based on their respective hardware specifications. It's meant to help you compare their suitability for running AI models locally.

LLM Category	Samsung Galaxy Book Flex 2 Alpha (13”)	Samsung Galaxy Book 4 Pro (16")
Small Models(1-3B):Examples: Phi-2, Qwen-1.8B	✔ Run smoothly.	✔ Run smoothly.
Medium Models(7-8B):Examples: Mistral-7B, Qwen-7B	✖ Not supported.	✔ Good performance.
Large Models(13-30B):Examples: Mixtral, Qwen-14B	✖ Not supported.	✖ Not supported.
Extra-Large Models(65B+):Examples: LLaMA2-70B, Qwen1.5-72B	✖ Not supported on most systems. Requires high-end GPU or advanced setup.	✖ Not supported on most systems. Requires high-end GPU or advanced setup.

Note: Optimized (e.g., 4-bit) models may run on limited hardware. Performance depends on runtime and setup.

📌 MoE Models: Some models like Mixtral 8x7B and Qwen3-30B-A3B use a Mixture of Experts (MoE) design, activating only part of the model during inference. This means they can often run efficiently on laptops with 12–16 GB of VRAM when quantized.

BATTERY

BATTERY	54 Wh	76 Wh
Battery Type	Li-Ion	Li-Po
Replaceable	No	No
Fast Charging	No	No
USB Power Delivery	No	Yes
Charging Port Position	Left	Left
Charge Power	40 W	65 W

On the other hand, the Galaxy Book 4 Pro 16 features a higher battery capacity of 76 Wh, delivering longer usage time compared to the Galaxy Book Flex 2 Alpha 13-inch's 54 Wh.

Battery Comparison

Samsung Galaxy Book Flex 2 Alpha 13-inch 54 Wh

Avg: 13.0-13.9" 53.1 Wh

Samsung Galaxy Book 4 Pro 16 76 Wh

Avg: 16.0-16.9" 74.15 Wh

STORAGE
Both laptops, the Galaxy Book Flex 2 Alpha 13-inch and the Galaxy Book 4 Pro 16 have similar max. storage capacities of 1 TB, allowing for ample space to store files and applications.

Storage Options	256 GB, 512 GB, 1 TB	256 GB, 512 GB, 1 TB
Upgradable	Yes	Yes
Total Slots	1	2
Storage type	SSD (M2)	SSD (M2)
NVMe	Yes	Yes

If your budget allows, we recommend opting for the largest possible disk size, considering the potential increase in storage capacity needs in the future. However, please keep in mind the question 'What will the laptop be used for?' when making this decision. Of course, you can later upgrade the hard disk capacity by getting a larger disk. However, if your laptop has only one disk slot, it may not be as straightforward as a RAM upgrade, where you simply add or replace a module, as moving or cloning files to a new disk may be necessary.

Samsung Galaxy Book Flex 2 Alpha 13-inch vs Samsung Galaxy Book 4 Pro 16 : Display Comparison

The display is an essential aspect to consider when comparing the Samsung Galaxy Book Flex 2 Alpha 13-inch and Samsung Galaxy Book 4 Pro 16 since its is the component that you interact the most and significantly impact the experience.

Screen Area and Dimensions

Now let's look at the comparison of the actual display areas of both laptops below, keeping the bezels around the screens out of the equation. Galaxy Book Flex 2 Alpha 13-inch has a display size of 13.3".On the other hand, Galaxy Book 4 Pro 16 has a larger16.0" display.The total usable screen area of the Galaxy Book Flex 2 Alpha 13-inch is 487cm² / 76inch² whereas the Galaxy Book 4 Pro 16 's total usable screen area is 742cm² / 115inch².

PPI (Pixels per Inch)
Additionally, the Galaxy Book 4 Pro 16 features a higher pixel density with 212 pixels per inch (PPI), ensuring sharper image details.

Screen PPI (Pixels Per Inch) Comparison

Samsung Galaxy Book Flex 2 Alpha 13-inch 166 PPI

Avg: 13.0-13.9" 186 PPI

Samsung Galaxy Book 4 Pro 16 212 PPI

Avg: 16.0-16.9" 169 PPI

Refresh Rate
The Galaxy Book 4 Pro 16 offers a higher refresh rate of 120 Hz, resulting in smoother motion and improved visual experience.

Brightness
The Galaxy Book Flex 2 Alpha 13-inch offers a higher maximum brightness of 600 nits, delivering a brighter screen.

Brightness Comparison

Samsung Galaxy Book Flex 2 Alpha 13-inch 600 nits

Avg: 13.0-13.9" 438 nits

Samsung Galaxy Book 4 Pro 16 400 nits

Avg: 16.0-16.9" 413 nits

Samsung Galaxy Book Flex 2 Alpha 13-inch vs Samsung Galaxy Book 4 Pro 16 Connectivity Comparison

In terms of connectivity,

Wifi
Both laptops offer the same Wi-Fi standard (v6E), ensuring fast and reliable wireless connections.

Below, you'll find a Wi-Fi Versions Table, along with their release dates and speeds, to provide a brief overview of its development.

Wi-Fi Versions and Speeds

Standard	Speed	Release Date	Network	Frequency Bands (GHz)
Wi-Fi 7	up to 40 Gbps (5 GB/s)	2023	802.11be	2.4, 5, 6
Wi-Fi 6E	up to 9.6 Gbps (1.2 GB/s)	2020	802.11ax	2.4, 5, 6
Wi-Fi 6	up to 9.6 Gbps (1.2 GB/s)	2019	802.11ax	2.4, 5
Wi-Fi 5	up to 6.93 Gbps (866.25 MB/s)	2014	802.11ac	2.4, 5
Wi-Fi 4	up to 600 Mbps (75 MB/s)	2009	802.11n	2.4, 5

* Please note that the provided transfer rates are maximum theoretical values, and real-life performance may vary based on environmental factors.

USB
Galaxy Book Flex 2 Alpha 13-inch is equipped with 2x USB 3.2 USB-A ports. Galaxy Book 4 Pro 16 does not have USB-A ports.
Both Galaxy Book Flex 2 Alpha 13-inch and Galaxy Book 4 Pro 16 have USB Type-C ports. Galaxy Book Flex 2 Alpha 13-inch has 1x USB 3.2 USB Type-C ports, while Galaxy Book 4 Pro 16 has 2x USB 4.0 USB Type-C ports.

Below, you'll find a table of USB ports, along with their release dates and speeds.
To mitigate the confusion caused by generation names, the USB Implementers Forum (USB-IF) suggests using marketing names like USB 5Gbps, USB 10Gbps, and so forth, based on their respective transfer rates.

USB Type and Speeds

USB Type	Version	Speed	Date	Other Features/Explanations
USB4	Gen 4 (2.0)	80 Gbps	2022	Also known as USB 80Gbps
USB4	Gen 3×2	40 Gbps	2019	Also known as USB 40Gbps
USB 3.2	3.2 Gen 2x2	20 Gbps	2019	Double the data transfer rates of Gen 2
USB 3.2	3.2 Gen 2	10 Gbps	2017	Previously known as USB 3.1
USB 3.2	3.2 Gen 1	5 Gbps	2017	Previously known as USB 3.0
USB 3.1	3.1 Gen 2	10 Gbps	2013	Faster data transfer rates
USB 3.0	3.1 Gen 1	5 Gbps	2010	SuperSpeed USB, improved data transfer rates
USB 2.0	2.0	480 Mbps	2000	High-speed data transfer
USB 1.0	1.0	1.5 Mbps	1996	Original USB standard

Thunderbolt
Galaxy Book 4 Pro 16 is equipped with Thunderbolt 4 port. Galaxy Book Flex 2 Alpha 13-inch does not have Thunderbolt port.

HDMI
Both Galaxy Book Flex 2 Alpha 13-inch and Galaxy Book 4 Pro 16 feature an HDMI port. Galaxy Book Flex 2 Alpha 13-inch offers 1x HDMI 2.0, while Galaxy Book 4 Pro 16 offers 1x HDMI 2.1.

Below, you'll find a comparison table detailing different HDMI versions, including their bandwidth, color depth, maximum resolution, and release dates. This information can be helpful in understanding the capabilities of each HDMI version and choosing the most suitable one for your needs.

HDMI Comparison Table

HDMI Version	Maximum Resolution	Bandwidth (Gbps)	Color Depth (bits)	Release Date
HDMI 2.1-2.1b	7680 x 4320 *(8K)* @ 60p 3840 x 2160 *(4K)* @ 120p	48.0	48	2017
HDMI 2.0-2.0b	3840 x 2160 *(4K)* @ 60p	18.0	48	2013
HDMI 1.4-1.4b	3840 x 2160 *(4K)* @ 30p	10.2	48	2009
HDMI 1.3-1.3a	2560 x 1440 @ 60p	10.2	48	2006
HDMI 1.0-1.2a	1920 x 1200 @ 60p	4.95	24	2002

* Please note that the provided resolution values represent the maximum supported resolution, and actual display quality may depend on other factors such as source content and connected devices.

SD Card Reader
Both Galaxy Book Flex 2 Alpha 13-inch and Galaxy Book 4 Pro 16 come with an SD Card Reader for easy access to memory cards.

Audio Jack
Both Galaxy Book Flex 2 Alpha 13-inch and Galaxy Book 4 Pro 16 are equipped with a 3.5mm Audio Jack, providing seamless connection to headphones and speakers.

To summarize the connectivity and ports details, please refer to the table below to see them listed.

Connectivity and Ports
WiFi Standard (latest: v7)	v6E	v6E
Bluetooth (latest: v5.4)	v5.1	v5.3
USB-A (latest: 3.2)	2x USB 3.2	No
USB Type-C (latest: USB4 2.0)	1x USB 3.2	2x USB 4.0
Thunderbolt (latest: 4)	No	Thunderbolt 4
HDMI (latest: 2.1)	1x HDMI 2.0	1x HDMI 2.1
Display Port (latest: v2.0)	No	No
VGA	No	No
Fingerprint Sensor	Yes	Yes
Optical Drive	No	No
Audio Jack 3.5mm	Yes	Yes
Ethernet RJ45	No	No
SD CardReader	Yes	Yes
Proprietary Charging Port	Yes	No