Apple Watch SE 2 (Cellular, China, 40 mm) Specs

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Apple Watch – A2855 – MNPJ3CH/A

About this Apple Watch

Apple unveiled the Apple Watch SE 2 A2855 on September 7, 2022. This cellular model is only available in mainland China, Hong Kong, and Macau. This model is nearly identical to its predecessor (Original Apple Watch SE). This model lacks an Always On display, but Apple added features like Activity tracking, high and low heart rate notifications, Emergency SOS, and Crash Detection. Apple also claimed that the S8 processor of this device delivers 20% more performance than the S5 processor. This model uses only aluminum for the casing. It must be connected to an iPhone 8 or later (with iOS16 or later) to use the Internet and perform additional functions.

The Apple Watch SE 2 A2855 model has a 40 mm case size and a 1.8-inch LTPO OLED Retina display. It is a touch-capable display that delivers a resolution of 324 x 394. The display area of this device is 759 square mm with rounded corners. The front is covered with Ion-X glass for scratch resistance. The backside of this model uses Ceramic and Sapphire crystal which connects to the charger.

This Apple Watch model comes with 1 GB RAM and 32 GB internal flash storage and haptic feedback for the Digital Crown, which gives users a more tactile experience as they scroll through content. Apple claims that the battery life of this device is 18 hours.

This Apple Watch is available in three colors for its aluminum case: warm Gray Starlight, nearly black Midnight, and Silver.

Apple S8

1 GB

32 GB

18 Hours

Storage & Memory

The internal onboard RAM of this device is 1 GB. The flash storage is 32 GB for this Apple Watch.

Screen Size and Resolution

This model has a 1.8-inch LTPO OLED Retina display that offers a resolution of 324 x 394. It has a display area of 759 square mm with rounded edges. The brightness level of this display is 1000 nits. This model’s display utilizes an Ion-X glass cover for durability and protection against scratches.

OS & Processor

The device uses a 64-bit dual-core S8 processor with System In Package (SIP) architecture to support multitasking capabilities. The pre-installed watchOS is watchOS 9 (20R361). It also supports the current version of the watchOS.

Battery

The built-in Li-Ion battery of this device provides a battery life of 18 hours, depending on usage.

Size and weight

This model weighs around 0.98. This Apple Watch SE 2 Cellular model is 1.57 inches in height x 1.34 inches in width x 0.42 inches in depth.

Inclusive Features

Cellular Capability
1 GB RAM
32 GB internal storage
Dual-core Apple S8 processor
The third-generation optical heart sensor
Always-On Altimeter
Activity tracking
Bluetooth 5.3 and WiFi 802.11b/g/n 2.4 GHz
Support Crash Detection for automobile crashes
Contrable with a Digital Crown with haptic feedback
Pre-installed Apple watchOS 9
1.8-inch OLED Retina display
Brightness of 1000 nits
Ion-X glass cover to protect against scratches
Up to 18 hours of battery life
Available in 3 color options (warm Gray Starlight, nearly black Midnight, and Silver)

Introduction Date: September 7, 2022					Discontinued Date: N/A
Processors					Memory
Processors		N/A			Onboard RAM	1 GB
Processor Speed		N/A			Storage
Processor Type		Apple S8			Capacity	32 GB
Connectivity Details					Song Capacity	N/A
USB Support				N/A	Photo Capacity	N/A
FireWire Support				N/A	Description
Standard Wireless				802.11b/g/n 2.4 GHz	Case Type		Watch
Standard Bluetooth				5.3	Form Factor		Apple Watch SE 2 (40 mm)
Cell Network				N/A	Housing Color		Aluminum
Battery Details					Controller		Digital Crown
Battery Type	Lithium Ion				Apple Order Number		MNPJ3CH/A
Battery Life	18 Hours				Apple Subfamily		Watch SE 2 40 mm
Stand by Time	N/A				Apple Model Number		A2855 (EMC 8092)
Operating System and Display					Model ID		Watch6,12
Pre-installed OS			watchOS 9 (20R361)		Camera		N/A
Maximum OS			Current		Dimensions		1.57 x 1.34 x 0.42
Built-in Display			1.8″ OLED		Average Weight		0.98 ounces
Display Resolution			324×394		Minimum iPhone Support		N/A

Identifier reference: MNPJ3CH/A, A2855, EMC 8092, Watch6,12. Use these together because one Apple identifier can sometimes cover multiple configurations.

Last reviewed by Techable: September 4, 2025Identifiers checked: order number, A-number, EMC, and model identifier when available.

Model summary

This Apple Watch at a glance

Family: Apple Watch
Order Number: MNPJ3CH/A
Model Number: A2855
EMC: 8092
Model ID: Watch6,12
Year: 2023

Use the order number, A-number, EMC, and model identifier together when comparing, buying, or selling this device.

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Search by A-number, EMC, order number, or model identifier.

Next steps

Use the spec table to confirm the exact device, then choose the right lookup, buy, or sell path.

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Common questions

Is MNPJ3CH/A the same as A2855?

Not exactly. MNPJ3CH/A usually points to a specific retail configuration, while A2855 identifies the broader Apple hardware family. Always check the EMC and model identifier too.

What Apple Watch is model A2855?

A2855 is the Apple A-number shown for this Apple Watch family. Use the order number, EMC, and model identifier on this page to narrow the exact configuration.

What does EMC 8092 mean?

The EMC number is another Apple hardware identifier. It helps separate closely related models that may share a similar name, year, or A-number.

Can the RAM or SSD be upgraded?

Check the spec table for the exact configuration. Many newer Apple Silicon Macs have memory and storage integrated into the board, so RAM and SSD upgrades are often not practical after purchase.

What macOS versions work with this model?

Use the model identifier, release year, and processor family from the spec table when checking macOS compatibility. Compatibility can change as Apple releases new macOS versions.

Is this Apple Watch still worth buying used?

It can be, depending on price, battery health, memory, storage, and condition. Compare this exact order number and model identifier against similar Techable listings before buying.

How much is this Apple Watch worth?

Value depends on RAM, storage, battery health, cosmetic condition, accessories, and market demand. Use the SellMac path on this page for a quote or use the identifiers here when comparing resale prices.

What should I search if this page is not the exact configuration?

Search the order number first when available, then compare the A-number, EMC, model identifier, year, chip, RAM, and storage. The same A-number can cover more than one configuration.

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