- Ultra-slim 5.3 mm aluminum chassis with full IP68 water and dust ingress resistance
- High-efficiency 3nm MediaTek Dimensity 9500 octa-core chipset
- 12.6-inch 120Hz Dynamic AMOLED 2X panel reaching up to 1600 nits peak brightness
- Dedicated microSDXC expansion up to 2TB paired with 7-generation OS upgrade support
- Local networking limited to Wi-Fi 6E rather than Wi-Fi 7
- Lacks an integrated 3.5mm analog headphone jack
- Rear camera module lacks a dedicated optical zoom lens
Overview
Constructed with an Enhanced Armor Aluminum frame and rear casing, the unibody chassis measures an ultra-slim 0.21 inches (5.3 mm) in depth while achieving an IP68 rating for dust sealing and water immersion up to 1.5 meters for 30 minutes. The structural enclosure evenly distributes its 1.22 lbs (553 g) mass across a 12.6-inch footprint, maintaining high torsional rigidity during intensive handheld or stylus use. Internal computing is driven by MediaTek’s 3nm Dimensity 9500 chipset, deploying an octa-core CPU configuration—anchored by a 4.21 GHz C1-Ultra core, three 3.5 GHz C1-Premium cores, and four 2.7 GHz C1-Pro efficiency cores—paired with a Mali-G1 Ultra MC12 graphics processor and 12 GB of system memory.
The visual interface utilizes a 12.6-inch Dynamic AMOLED 2X panel operating at 1752 x 2800 resolution with a 120Hz refresh rate, delivering 1000 nits high-brightness mode and up to 1600 nits peak luminance. Thermal management relies entirely on passive conduction across the broad aluminum rear shell to sink heat from the 3nm platform without active acoustic disruption. Acoustic output is delivered via four AKG-tuned stereo speakers, while physical I/O centers on a high-speed USB Type-C 3.2 interface and magnetic stylus charging contacts. Notably, physical storage expansion is preserved through a dedicated microSDXC tray supporting cards up to 2TB, offsetting the industry-standard removal of the 3.5mm analog audio jack.
Power stability is maintained by a 10,600 mAh lithium-ion battery pack supported by 45W wired charging that completes a zero-to-full recharge cycle in approximately 95 minutes. Running Android 17 with One UI 9, the software layer includes wireless Samsung DeX for windowed desktop productivity and is backed by a manufacturer commitment of up to seven major OS generation upgrades. Wireless connectivity covers tri-band Wi-Fi 6E, Bluetooth 6.0, and optional 5G Sub6 cellular configurations, delivering long-term protocol reliability across extended production cycles.
Technical Specifications
| Brand | Samsung |
| Model | Galaxy Tab S12+ |
| Dimensions | 11.40 x 7.39 x 0.21 in (289.5 x 187.8 x 5.3 mm) |
| Weight | 1.22 lbs (553 g) [Wi-Fi] / 1.22 lbs (555 g) [5G] |
| Chassis Materials | Glass front, Enhanced Armor Aluminum frame and back panel |
| Ingress Protection | IP68 (dust-tight, water resistant up to 1.5 m for 30 min) |
| Display Type | Dynamic AMOLED 2X, HDR10+ |
| Display Size | 12.6 in (320 mm) diagonal |
| Display Resolution | 1752 x 2800 pixels (16:10 aspect ratio, ~262 ppi) |
| Refresh Rate | 120 Hz |
| Display Brightness | 1000 nits (HBM), 1600 nits (peak) |
| Processor (SoC) | MediaTek Dimensity 9500 (3nm node) |
| CPU Architecture | Octa-core (1x 4.21 GHz C1-Ultra + 3x 3.5 GHz C1-Premium + 4x 2.7 GHz C1-Pro) |
| Graphics (GPU) | Mali-G1 Ultra MC12 |
| Memory (RAM) | 12 GB |
| Internal Storage Options | 256 GB, 512 GB |
| Storage Expansion | microSDXC dedicated slot (up to 2 TB supported) |
| Rear Camera | 13 MP, f/2.0, 26mm (wide), 1/3.4", 1.0µm, AF, LED flash, 4K@30fps video |
| Front Camera | 12 MP, f/2.4, 120˚ (ultrawide), 4K@30fps video |
| Audio System | Quad stereo speakers, AKG-tuned |
| 3.5mm Headphone Jack | No |
| USB Interface | USB Type-C 3.2, magnetic connector |
| WLAN | Wi-Fi 6E (802.11 a/b/g/n/ac/6e), tri-band, Wi-Fi Direct |
| Bluetooth | Version 6.0, A2DP, LE |
| Cellular Connectivity | 5G Sub6, LTE, HSPA, GSM (nano-SIM + eSIM on 5G variants) |
| Positioning | GPS, GLONASS, BDS, GALILEO |
| Biometrics & Sensors | In-display optical fingerprint sensor, accelerometer, gyro, proximity, compass |
| Stylus Support | S Pen bundled |
| Desktop Environment | Wireless Samsung DeX support |
| Battery Capacity | 10,600 mAh |
| Charging Power | 45W wired (100% in ~95 minutes) |
| Operating System | Android 17 with One UI 9 (up to 7 major OS updates supported) |
| Model Numbers | SM-X840 (Wi-Fi), SM-X846 (5G) |
Primary Sources & Audited Citations
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At a Glance
How reliable is the Samsung Galaxy Tab S12+ Review: Sub-6mm Engineering With IP68 Sealing according to Mizex audits?
A premier large-format Android tablet offering rare IP68 water sealing, desktop-class DeX productivity, and seven years of software support, provided Wi-Fi 6E and the omission of an analog headphone jack align with your workflow.
What are the known quirks or drawbacks of the Samsung Galaxy Tab S12+ Review: Sub-6mm Engineering With IP68 Sealing?
Our reliability audit identified the following documented caveats:
- Local networking limited to Wi-Fi 6E rather than Wi-Fi 7
- Lacks an integrated 3.5mm analog headphone jack
- Rear camera module lacks a dedicated optical zoom lens
What are the key engineering highlights of the Samsung Galaxy Tab S12+ Review: Sub-6mm Engineering With IP68 Sealing?
The top strengths recorded in our evaluation include:
- Ultra-slim 5.3 mm aluminum chassis with full IP68 water and dust ingress resistance
- High-efficiency 3nm MediaTek Dimensity 9500 octa-core chipset
- 12.6-inch 120Hz Dynamic AMOLED 2X panel reaching up to 1600 nits peak brightness
- Dedicated microSDXC expansion up to 2TB paired with 7-generation OS upgrade support