Apple Watch 1st Gen vs. Series 1: A Detailed Comparison

The Apple Watch revolutionized the smartwatch market, but the original model quickly saw an upgrade with the Series 1. Both offer a classic Apple Watch experience, but subtle differences impact performance and features. This comparison dives deep to help you decide which is right for you.
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🏆 Quick Verdict

The Apple Watch Series 1 is the clear winner. Its dual-core processor provides a noticeable performance boost over the 1st generation, resulting in smoother navigation and faster app loading. While both offer wireless charging, the Series 1's improved speed makes it the better choice for most users.

PHONES
Phone Names Apple Watch 42mm (1st gen) Apple Watch Series 1 Aluminum 42mm
Network
2G bandsN/AN/A
EDGENoNo
GPRSNoNo
TechnologyNo cellular connectivityNo cellular connectivity
Launch
Announced2014, September. Released 2015, April2016, September. Released 2016, December
StatusDiscontinuedDiscontinued
Body
BuildGlass front (Sapphire crystal), ceramic/sapphire crystal back, stainless steel frameGlass front, composite plastic back, aluminum frame
Dimensions42 x 35.9 x 10.5 mm (1.65 x 1.41 x 0.41 in)42.5 x 36.4 x 10.5 mm (1.67 x 1.43 x 0.41 in)
SIMNoNo
Weight50 g body (2.82 oz)30 g body (1.06 oz)
 IPX7 water resistant up to 1 meter and 30 minutesIPX7 water resistant up to 1 meter and 30 minutes
Display
ProtectionSapphire crystal glassIon-X strengthened glass
Resolution390 x 312 pixels (~303 ppi density)390 x 312 pixels (~303 ppi density)
Size1.65 inches1.65 inches
TypeRetina OLED, 450 nits (peak)Retina OLED, 450 nits (peak)
 3D Touch display3D Touch display
Platform
CPU520 MHz Cortex-A7Dual-core 520 MHz Cortex-A7
ChipsetApple S1 (28 nm)Apple S1P (28 nm)
GPUPowerVR SGX543PowerVR G6200
OSwatchOS 1.0, upgradable to watchOS 4.3.2watchOS 3.0, upgradable to watchOS 6.2.8
Memory
Card slotNoNo
Internal8GB 512MB RAM8GB 512MB RAM
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker YesYes
Comms
Bluetooth4.0, LE4.0, LE
NFCYesYes
PositioningNoNo
RadioNoNo
USBNoNo
WLANWi-Fi 802.11 b/g/nWi-Fi 802.11 b/g/n
Features
SensorsAccelerometer, gyro, heart rateAccelerometer, gyro, heart rate
 Natural language commands and dictationNatural language commands and dictation
Battery
ChargingWirelessWireless
TypeLi-Ion 250 mAh (0.94 Wh), non-removableLi-Ion 250 mAh (0.94 Wh), non-removable
Misc
ColorsStainless Steel/Red, White, Brown/Black/Blue/Marine Blue Buckle, Blue/Stone/White/Storm Gray Leather Loop, Silver/Space Black Milanese Loop, Link Bracelet, Space Black Stainless Steel/Black, Black Link Bracelet, Pearl Woven NylonCase colors: silver, gold, rose gold, gray Band colors: brown, white, black, blue Band types: sport
ModelsA1554A1803
PriceAbout 700 EURAbout 300 EUR
Camera
 NoNo

Apple Watch 42mm (1st gen)

  • Classic Apple Watch Design
  • Wireless Charging
  • Affordable (used)

  • Slower Performance
  • Limited App Support (compared to newer models)
  • Outdated Software

Apple Watch Series 1 Aluminum 42mm

  • Improved Performance (Dual-Core Processor)
  • Slightly Better App Support
  • Wireless Charging
  • More Responsive User Interface

  • Still Relatively Outdated
  • Limited App Support (compared to newer models)
  • Battery Life Similar to 1st Gen

Display Comparison

Both devices feature a 42mm display with a resolution of 312 x 390 pixels. The display technology and overall visual quality are virtually identical between the two models. Brightness and viewing angles are comparable, offering a clear and readable experience in most lighting conditions.

Camera Comparison

Neither the 1st generation Apple Watch nor the Series 1 have a built-in camera. This was a feature not included in either model.

Performance

This is where the Series 1 shines. The dual-core S1P chip provides a significant performance advantage over the single-core S1 in the 1st generation. Expect noticeably faster app launches, smoother animations, and a more responsive user interface on the Series 1. The 1st gen can feel sluggish at times, especially when multitasking.

Battery Life

Battery life is roughly similar on both devices, typically lasting around 18 hours with moderate use. Charging times are also comparable, taking approximately 2.5 hours for a full charge using the included wireless charging puck.

Buying Guide

The Apple Watch 42mm (1st gen) might appeal to budget-conscious buyers seeking a basic smartwatch experience and nostalgic Apple Watch feel. The Apple Watch Series 1 Aluminum 42mm is ideal for anyone wanting a more responsive and fluid smartwatch experience without breaking the bank.

Frequently Asked Questions

❓ Is the Apple Watch Series 1 worth buying?
Yes, if you're looking for an affordable entry point into the Apple Watch ecosystem and don't need the latest features. The performance upgrade over the 1st gen is significant.
❓ What are the main differences between the Apple Watch 1st gen and Series 1?
The primary difference is the processor. The Series 1 has a dual-core processor, resulting in faster performance and a more responsive user experience. Both have similar battery life and display quality.