AI comparison report

Siemens S45 vs Nokia 8310

By CompareAI Editorial Team · Published 2026-09-25 · How we compare

Choose the Siemens S45 for advanced business productivity and PC data synchronization, or select the Nokia 8310 for ultra-compact portability, customizable sty…

Who wins: Siemens S45 or Nokia 8310?

Choose the Siemens S45 first if you prioritize business productivity, PC synchronization, and higher display capacity, but opt for the Nokia 8310 first if you want an ultra-lightweight fashion phone with FM radio and extended standby endurance.

Based on our analysis across 6 dimensions with 20 sources, Siemens S45 scores 7.8/10 overall while Nokia 8310 scores 7.5/10 overall.

DimensionSiemens S45Nokia 8310
Design, Dimensions & Portability6.8/109.2/10
Display Resolution & Backlighting8.5/106.5/10
Productivity, PIM & Memory Architecture9.2/106.8/10
Data Connectivity & PC Interfacing9/106.5/10
Entertainment & Multimedia Features5.5/108.5/10
Battery Capacity & Endurance7.5/107.5/10
Overall7.8/107.5/10

Should I choose Siemens S45 or Nokia 8310?

Verdict: Choose the Siemens S45 first if you prioritize business productivity, PC synchronization, and higher display capacity, but opt for the Nokia 8310 first if you want an ultra-lightweight fashion phone with FM radio and extended standby endurance.

Choose the Siemens S45 for advanced business productivity and PC data synchronization, or select the Nokia 8310 for ultra-compact portability, customizable styling, and integrated FM radio entertainment.

The Siemens S45 is the superior choice for professional productivity, offering a higher-resolution 101x80 display displaying up to 7 lines of text, 360 KB of flexible storage, up to 13 fields per contact in its 500-entry address book, wired serial cable syncing, and up to 6 hours of talk time from its 850 mAh battery. Conversely, the Nokia 8310 excels in portability and lifestyle features, weighing only 84 g with a compact 97 x 43 x 19 mm frame (compared to 93 g and 109 x 46 x 20 mm on the Siemens), while delivering an integrated FM radio, 4 games with 2-player IrDA support, 9 Xpress-on cover options, and up to 400 hours of standby time from its 830 mAh BLB-2 battery.

Best for Siemens S45

  • Enterprise productivity and Microsoft Outlook synchronization
  • Users needing detailed address book records with up to 13 fields per contact
  • Viewing more content with a 101x80 resolution screen showing up to 7 lines of text
  • Physical wired serial data cable connectivity for PC tethering alongside IrDA
  • Flexible file storage with 360 KB of drag-and-drop user memory
  • Voice memo recording with an integrated 3-minute dictaphone
  • Longer active talk time of up to 6 hours

Best for Nokia 8310

  • Ultra-compact portability weighing only 84 g
  • Pocket-friendly dimensions measuring 97 x 43 x 19 mm
  • Customizable aesthetics with 9 interchangeable Xpress-on cover colors
  • Integrated FM radio entertainment on the go
  • Local 2-player gaming over Infrared across 4 built-in games
  • Extended standby battery life lasting up to 400 hours
  • High-contrast white/ice-blue display backlighting

When not to compare directly

Do not compare them directly when evaluating strict business data management against casual lifestyle use, as the Siemens S45 is architected as an enterprise PIM workhorse with wired PC sync and flexible storage, whereas the Nokia 8310 is tailored as a compact fashion accessory focused on FM entertainment and modular styling.

What are the key differences between Siemens S45 and Nokia 8310?

  • Design, Dimensions & Portability

    The Nokia 8310 is significantly more compact and lighter at 84 g than the Siemens S45 at 93 g while offering customizable Xpress-on covers instead of a fixed business chassis [7, 8].

    Siemens S45: The Siemens S45 is built with a sober business aesthetic featuring an internal antenna and an amber-backlit display, measuring 109 x 46 x 20 mm and weighing 93 g [7, 8].

    Nokia 8310: The Nokia 8310 emphasizes fashion and portability with a modular design supporting 9 interchangeable Xpress-on cover colors, measuring 97 x 43 x 19 mm and weighing 84 g [8, 18].

    Scores — Siemens S45: 6.8/10, Nokia 8310: 9.2/10

    Determines pocketability, build aesthetics, and customizability for users choosing between an ultra-compact fashion handset and a solid business tool.

    Sources: Siemens - S45, Nokia 8310 - Full phone specifications

  • Display Resolution & Backlighting

    The Siemens S45 provides a higher-resolution 101x80 display accommodating up to 7 lines of text with amber backlighting, whereas the Nokia 8310 offers a smaller 84x48 display with up to 5 lines and white backlighting.

    Siemens S45: The Siemens S45 features a 101x80 pixel monochrome STN display capable of rendering up to 7 lines of text with an amber backlight [1].

    Nokia 8310: The Nokia 8310 features an 84x48 pixel monochrome graphic display supporting up to 5 lines of text with a bright white/ice-blue backlight [2, 14].

    Scores — Siemens S45: 8.5/10, Nokia 8310: 6.5/10

    Screen real estate and backlighting affect readability of text messages, WAP browsing, and PIM calendar entries.

    Sources: Siemens S45 - Legacy Portable Computing Wiki, Nokia 8310

  • Productivity, PIM & Memory Architecture

    While the Nokia 8310 relies on a partitioned dynamic memory storing up to 500 phonebook entries with 3 numbers each, the Siemens S45 provides 360 KB of flexible, drag-and-drop user storage with comprehensive Microsoft Outlook synchronization and up to 13 fields per contact.

    Siemens S45: The Siemens S45 is tailored for enterprise productivity with approximately 360 KB of user-accessible 'Flexible Memory' that functions like a drive for file management via serial or IrDA sync software, seamless Microsoft Outlook calendar and contact synchronization, and an address book supporting up to 500 contacts with up to 13 fields each.

    Nokia 8310: The Nokia 8310 focuses on basic consumer PIM functionality with a dynamic phonebook holding up to 500 entries (up to 3 numbers and 1 text field per entry), capacity for up to 250 calendar notes and 30 to-do items, and standard PC synchronization over infrared via Nokia PC Suite.

    Scores — Siemens S45: 9.2/10, Nokia 8310: 6.8/10

    Crucial for business users needing PC synchronization, robust address book management, and flexible file storage.

    Sources: Siemens S45 - Legacy Portable Computing Wiki, Siemens S45

  • Data Connectivity & PC Interfacing

    While both phones feature GPRS Class 4 and IrDA connectivity, the Siemens S45 includes a physical serial data cable interface for PC tethering, whereas the Nokia 8310 relies strictly on wireless IrDA without an external wired PC data cable port.

    Siemens S45: The Siemens S45 launched in 2001 with GPRS Class 4 (upgradable to Class 8) and an integrated IrDA port, bundled with a dedicated serial data cable and Siemens Data Exchange Software to facilitate direct PC interfacing, mass storage synchronization, and modem tethering.

    Nokia 8310: The Nokia 8310 debuted in 2001 as Nokia's first GPRS device, featuring GPRS Class 4 (3+1 timeslots delivering 24 to 36 kbps) alongside IrDA connectivity, but it lacked an external wired data connector and relied primarily on wireless infrared for PC Suite tethering.

    Scores — Siemens S45: 9/10, Nokia 8310: 6.5/10

    Both handsets introduced GPRS packet data, shaping how users browsed WAP services or tethered to computers for mobile data in 2001.

    Sources: Siemens S45 - Legacy Portable Computing Wiki, Nokia 8310 - Full phone specifications

  • Entertainment & Multimedia Features

    While the Siemens S45 provides productivity-focused voice recording across its 360 KB internal memory, the Nokia 8310 offers dedicated entertainment through an integrated FM radio receiver and 4 games supporting 2-player Infrared multiplayer.

    Siemens S45: The Siemens S45 focuses on business-oriented multimedia, offering 360 KB of flexible user memory, an integrated voice dictaphone for up to 3 minutes of audio recording, EMS messaging support, and pre-installed games.

    Nokia 8310: The Nokia 8310 emphasizes consumer entertainment with an integrated FM radio receiver and 4 built-in games (including Snake II and Bumper) supporting 2-player local gaming via Infrared (IrDA).

    Scores — Siemens S45: 5.5/10, Nokia 8310: 8.5/10

    Differentiates consumer entertainment offerings, such as radio playback and games, from purely productivity-oriented tools.

    Sources: Nokia 8310 - Full phone specifications, Siemens S45

  • Battery Capacity & Endurance

    While the Siemens S45 delivers longer talk time at up to 6 hours with its 850 mAh battery, the Nokia 8310 achieves greater standby endurance of up to 400 hours with its 830 mAh BLB-2 battery.

    Siemens S45: The Siemens S45 is equipped with an 840–850 mAh Li-Ion battery that provides up to 6 hours of talk time and up to 300 hours of standby time [1, 11].

    Nokia 8310: The Nokia 8310 utilizes a removable 830 mAh BLB-2 Li-Ion battery supporting 2 to 4 hours of talk time and a longer standby endurance of 100 to 400 hours [8, 14].

    Scores — Siemens S45: 7.5/10, Nokia 8310: 7.5/10

    Battery endurance dictates operational uptime between charges for talk time and standby periods.

    Sources: Nokia 8310 - Full phone specifications, Siemens S45 - full specs, details and review

What are the pros and cons of Siemens S45 vs Nokia 8310?

Siemens S45

Strengths

  • The Siemens S45 provides a higher-resolution 101x80 pixel monochrome STN display capable of rendering up to 7 lines of text.
  • The Siemens S45 features approximately 360 KB of user-accessible 'Flexible Memory' that functions like a drive for file management and seamless Microsoft Outlook synchronization.
  • The Siemens S45 includes an advanced address book supporting up to 500 contacts with up to 13 fields each.
  • The Siemens S45 comes equipped with a dedicated physical serial data cable interface and Siemens Data Exchange Software alongside IrDA for reliable PC tethering and synchronization.
  • The Siemens S45 supports GPRS Class 4 that is upgradable to GPRS Class 8.
  • The Siemens S45 features an integrated voice dictaphone supporting up to 3 minutes of audio recording.
  • The Siemens S45 delivers up to 6 hours of continuous talk time with its 840–850 mAh Li-Ion battery.

Weaknesses

  • The Siemens S45 is larger and heavier than the Nokia 8310, measuring 109 x 46 x 20 mm and weighing 93 g.
  • The Siemens S45 features a fixed, sober business chassis without interchangeable cosmetic cover options.
  • The Siemens S45 lacks an integrated FM radio receiver for consumer audio entertainment.
  • The Siemens S45 offers a lower maximum standby battery endurance of up to 300 hours compared to the Nokia 8310's 400 hours.

Nokia 8310

Strengths

  • The Nokia 8310 is highly compact and lightweight, measuring 97 x 43 x 19 mm and weighing just 84 g.
  • The Nokia 8310 features a customizable modular design supporting 9 interchangeable Xpress-on cover colors.
  • The Nokia 8310 includes a built-in FM radio receiver for direct entertainment playback.
  • The Nokia 8310 includes 4 built-in games (including Snake II and Bumper) that support 2-player local gaming over Infrared (IrDA).
  • The Nokia 8310 delivers longer standby battery endurance reaching up to 400 hours with its 830 mAh BLB-2 battery.
  • The Nokia 8310 features a bright white/ice-blue display backlight.

Weaknesses

  • The Nokia 8310 has a smaller, lower-resolution 84x48 pixel graphic display that accommodates only up to 5 lines of text.
  • The Nokia 8310 lacks an external wired PC data connector, relying solely on wireless IrDA for PC Suite connectivity and tethering.
  • The Nokia 8310 provides a restricted phonebook architecture limited to 3 numbers and 1 text field per contact across its 500 entries, rather than flexible multi-field storage.
  • The Nokia 8310 offers shorter talk time endurance, rated between 2 and 4 hours.
  • The Nokia 8310 lacks an integrated voice dictaphone for audio recording.

Where does this data come from?

  1. Siemens S45 - Legacy Portable Computing Wiki
  2. Nokia 8310
  3. the history of Siemens phones and their many innovations
  4. Nokia 8310 – When Phones Were Built to Last!
  5. Siemens S45 vs S45i - by Old Phones World
  6. Nokia 8310 - School of Computer Science
  7. Siemens - S45
  8. Nokia 8310 - Full phone specifications
  9. S45/ME45
  10. The Nokia 8310 was released in 2001, it ...
  11. Siemens S45 - full specs, details and review
  12. Nokia 8310 - Legacy Portable Computing Wiki - Miraheze
  13. Siemens S45
  14. Nokia 8310 Vintage Mobile Phone
  15. Siemens S45
  16. Nokia 8310 statistics
  17. Siemens S45 Technical Specifications
  18. Nokia - 8310
  19. SIEMENS S45 SERVICE MANUAL Pdf Download
  20. Nokia 8310 - User opinions and reviews - page 26

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